The Holy Quran mentions about the Racism: O mankind! Indeed, We created you from a male and a female and made you nations and tribes that you may identify yourselves with one another. Indeed, the noblest of you in the sight of Allah is the most God wary among you. Indeed, Allah is all-knowing, all-aware (49:13).

"The issue of equality between all human beings, opposition to any type of racial, ancestral and class discrimination, fairness between all the children of Adam in relation to human rights and that no person is better than another due to his skin color, language, lineage or race - is one of the most important societal issues in the Qur’an which has been mentioned in various verses of this Heavenly Book. The Qur’an has denounced all sorts of superiority - whether it be of race, language, or skin color." 

Likewise, Prophet Muhammad (PBUH & HP) says: Surely all of mankind – from the time of Adam until our time – are like the teeth of a comb (all equal to one another) and there is no greatness for an `Arab over a non-`Arab and no greatness for a red-skinned person over a black-skinned person, except due to one’s consciousness of Allah (taqwa).”

There are numerous verses in the Holy Quran and the teachings of the Holy Prophet (PBUH & HP) that invite human beings towards brotherhood and equality. Throughout his life, the Holy Prophet (PBUH & HP) taught people that all humans are one and the only difference that exists is in their God-wariness as mentioned in verse 13 of Surah Hujarat. We learn from the Holy Prophet (PBUH & HP) and the Ahlul Bayt (AS) that Islam has established equality for the entire human race and struck at the very root of all distinctions based on color, race, language or nationality. According to Islam, Allah has given man this right of equality as a birthright. Thus, no man should be discriminated against on the basis of the color of his skin, his place of birth, his race or the nation in which he was born. 

Apart from conveying the pure teachings of Islam, the Holy Prophet (PBUH &HP) was also able to rouse hope in the hearts of the poor and the downtrodden section of his society. In many instances within his practical life, he was successful in eliminating bigotry and racism that was surrounding him. In order for him to reach his aim of equality between all human beings, he married the daughter of his uncle to a slave named Zaid. In addition, he gave Bilal, who was both a non-`Arab and an African slave (at one point in his life), the important religious post of being the Muaddhin, the one who calls to prayer. He also convinced Ziyad ibn Labid who was one of the richest and noblest men from amongst the Ansar to marry his daughter to an African slave named Jubair. This marriage between a nobleman's daughter and a slave, was the beginning of many such marriages that broke mental and social barriers among the followers of Islam. Islam is a practical example of how human beings and societies can fight racial discrimination and create a society based on unity and brotherhood.

Martyr Malcolm X Talks about Racism in Hajj

The annual ritual of Hajj is an outstanding display of beauty and splendor among the followers of Islam and it is this very beauty of Islam that inspired (Martyr) Malcolm X to write the following letter after he made his first Hajj:

"Never have I witnessed such sincere hospitality and overwhelming spirit of true brotherhood as is practiced by people of all colors and races here in this ancient Holy Land, the home of Abraham, Muhammad and all the other prophets of the Holy Scriptures. For the past week, I have been utterly speechless and spellbound by the graciousness I see displayed all around me by people of all colors.....There were tens of thousands of pilgrims, from all over the world. They were of all colors, from blue-eyed blondes to black-skinned Africans. But we were all participating in the same ritual, displaying a spirit of unity and brotherhood that my experiences in America had led me to believe never could exist between the white and the non-white. You may be shocked by these words coming from me. But on this pilgrimage, what I have seen, and experienced, has forced me to rearrange much of my thought-patterns previously held, and to toss aside some of my previous conclusions. This was not too difficult for me. Despite my firm convictions, I have been always a man who tries to face facts, and to accept the reality of life as new experience and new knowledge unfolds it. I have always kept an open mind, which is necessary to the flexibility that must go hand in hand with every form of intelligent search for truth.
During the past eleven days here in the Muslim world, I have eaten from the same plate, drunk from the same glass and slept in the same bed (or on the same rug)-while praying to the same Allah with fellow Muslims, whose eyes were the bluest of the blue, whose hair was the blondest of blond, and whose skin was the whitest of white. And in the words and in the actions and in the deeds of the ‘white' Muslims, I felt the same sincerity that I felt among the black African Muslims of Nigeria, Sudan and Ghana.
We are truly all the same-brothers.
All praise is due to Allah, the Lord of the worlds."

Conclusion:

The Holy Quran tells us:

"Certainly, We have honored the Children of Adam, and carried them over land and sea, and provided them with all the good things, and preferred them with a complete preference over many of those We have created." (17:70)

The Holy Quran teaches us that Islam lays down some rights for man as a human being. Every man whether he belongs to one country or the other, whether he is a believer or a non-believer, whether he lives in forest or desert, whatever be the case, he has some basic human rights simply because he is a human being, which should be recognized by every human being.

Today, the world is struggling to come to terms with equality in true sense. Racial discrimination continues to be a challenge, even for the most developed nations. However, Islam has shown the way to fight racial discrimination and create a society based on amity, love and unity. InshaAllah, the world will very soon realize that the only solution to racism lies in following Islam.

References:

1. Islamic Moral System: Commentary of Surah Al-Hujurat Ayt. Jafar Subhani
2. Malcolm X's letter http://islam.uga.edu/malcomx.html

Imam Mahdi (AS) is the last and the twelfth Imam of the Shiite Muslims. He was born in 255 H (874 AC) and the Shiite Muslims believe that their last Imam has been alive for approximately 1150 years. According to Shiite narrations, Imam Mahdi (AS) is currently in occultation and hidden from the public.

In this regard, Imam Kazim (AS) says:

The apparent gift of Allah is an Imam known to the people and the Hidden gift of Him is an Imam who is hidden. 

After that, the narrator of this hadith asks the Imam: “Is there going to be a hidden Imam?” Imam Kazim (AS) replied:

Yes! He will be hidden from the eyes of the people but the hearts of the faithful will not forget him. (1)

Despite Imam Mahdi (AS) being in occultation, we have responsibilities and duties to fulfill during this period. His hidden state doesn’t imply that Shiite Muslims have nothing to do for their faith and religion.

In fact, the best way to maintain a strong connection with our Imam is by following his orders. The Shiite Imams have told us about the responsibilities we have during this special time and some of them are mentioned below:

Upholding our faith

During the occultation of the Imam, it is a time when people may lose faith in him. In this regard, Imam Sadiq (AS) said:

With Mahdi (AS), there will be a little number of Arabs.

Then the Imam was told “But there are so many Arabs now that have faith in this religion!” Imam Sadiq (AS) replied:

People will inevitably be tested and they will be differentiated from one another and many will fail this test. (2)

The Holy Prophet (PBUH & HP) once prayed:

O Allah! Show me my brothers, Show me my brothers.

The people around him asked “O Messenger of Allah! Aren’t we your brothers?”

He responded:

No! you are my companions. But my real brothers are those who live in the last times of this world. They believe in me while they haven’t seen me … keeping faith in those times, will be more difficult than cutting the thorns of a plant on a dark night or holding a burning wood in one’s hands. They are the lights in the darkness and Allah will save them from every catastrophic test of seduction. (3)

As you see, being a faithful person is easy during the occultation. Therefore, one of our responsibilities is to keep our belief in Islam during these times. 

Harith ibn Muqhairah (one of the followers of Imam Sadiq (AS)) says “Once I told Imam Sadiq (AS): ‘We are being told that the leader of this religion will be hidden one day. So, in those times, what should we do?’”

Imam Sadiq (AS) said:

Keep your very faith that you have now and do as you have been ordered before him, until the time that everything will be clear for you [the arrival of Imam Mahdi (AS)].(4)

Getting to know Imam Mahdi (AS) more

Understanding the message of our Imams and having knowledge about their attributes and role in this world is crucial in the Shiite view. This is one of the most significant duties of Shias during the occultation. In this regard Imam Sadiq (AS) advises one of his pupils named Fozail:

O Fozail! Get to know your Imam because if you know him, it will be the same for youwhether his arrival is soon or delayed and anyone who knows their Imam and then dies before his arrival is like one of his soldiers. (5)

Praying 

In the Islamic point of view, praying is one of the most effective ways to have our wishes fulfilled. We should call upon Allah when we need Him and ask him to solve our problems, trusting that He will answer our prayers. The holy Prophet (PBUH & HP) said:

Call upon Allah while being certain that He will answer. (6)

Living without a guide in this world is the most significant problem we have. Without our Imams, we Shias have no savor and our problems seem never-ending. In this regard, Imam Sadiq (AS) says: 
The problems of the Earth will not be finished except by an Imam. (7)

Therefore, one of the most important prayers we should make is for the return of Imam Mahdi (AS). The Shiite Imams have persuaded their followers to pray for the arrival of Imam Mahdi (AS). 

Imam Sadiq (AS) told one of his pupils named Humran about the attributes of the occultation time and advised him:

When you saw … that the world is highly favorable for the unfaithful people and the flag of the righteous people is hidden, be cautious and ask Allah to save you. (8)

Imam Sadiq (AS) also said:

You Shias will face doubts in the future and [during those times] you won’t see a right flag or a guiding Imam and no one will be saved in those times except for the ones who pray like a drowning person. 
Then the narrator of the hadith asks the Imam: “How can I pray like a drowning person?”

Imam Sadiq (AS) replied:

You should say: 

“یا اللّه یا رحمن یا رحیم یا مقلب القلوب ثبت قلوبنا علی دینک”

O Allah! O Rahman! O Rahim! O Controller of the hearts! Make my heart keep its faith in your religion. (9)

Imam Mahdi (AS) himself wrote to one of his followers:

Pray so much to Allah for my arrival because it resolves all your problems (10)

In addition to this fact that praying makes his arrival more likely to happen sooner, praying is also the best way to relate to Imam Mahdi (AS) and this way, we can make a good connection to him. In return, Imam Mahdi (AS) sees that you are always thinking about him and praying for his arrival. It is obvious that Imam Mahdi (AS) loves the ones who do not forget him and pray for him more than others. Due to this fact, Imam Mahdi (AS) will pray for us in return and clearly, the praying of an Imam surely will be answered by Allah. 

Don’t forget that it is so important for praying for the arrival Imam Mahdi (AS) to be in a group. You should get together with your family, friends or even the other people to pray for Imam Mahdi (AS).

Imam Sadiq (AS) said:

If four people gather and pray, they won’t leave each other until Allah answers their supplication (11)

He also said:

When something would bother my father (Imam Baqir), he would gather all the women and kids in the house and he would pray and they would say “Amen.” (12)

As you see, praying together as a group holds great important for it to be answered by Allah. Imagine the impact if all the Shiite Muslims united in praying for the arrival of Imam Mahdi (AS) pure hearts. It is obvious that his occultation wouldn’t have prolonged for so long. So, one of our important responsibilities toward Imam Mahdi (AS) is to encourage others to pray for his arrival and we’d better pray in group. 

There are many other responsibilities we have during the occultation. The most important thing is to follow the orders of the previous Imams and fulfill all of our religious obligations so that Allah would save us from this dangerous time. 

Resources 

1.  Kamal ad-Din, Sheikh Saduq, vol.2, pg.369
2.  Al-Ghaybah, Sheikh an-No’mani, pg.204
3.  Basa’ir ad-Darajat, As-Saffar al-Qommi, pg.84
4.  Al-Ghaybah, Sheikh an-No’mani, pg.159
5.  Al-Ghaybah, Sheikh an-No’mani, pg.329
6.  Bihar al-Anvar, Allamah al-Majlesi, vol.90, pg.321
7.   Al-Kafi, Sheikh Koleini, vol.2, pg.21
8.   Al-Kafi, Sheikh Koleini, vol.8, pg.42
9.   Kamal ad-Din, Sheikh Saduq, vol.2, pg.352
10.   Al-Ih’tijaj, Sheikh at-Tabrasi, vol.2, pg.284
11.   Al-Kafi, Sheikh Koleini, vol.2, pg.487
12.   Al-Kafi, Sheikh Koleini, vol.2, pg.487