Some people ask why Muslims do not celebrate Christmas? Is that because they do not agree on the 25th of December as Jesus birthday? Or is that because they say Christians believe in Jesus as the son of God, while Muslims do not believe in Trinity, as well as they believe that Islam is the religion that is more complete than Christianity and all other religions that came in the past; the same way that Christians believe that Christianity is a more complete religion than Judaism.

But let’s put aside the issue of Islamic view on the date of birth of Prophet Jesus (PBUH). The most important fact that causes Muslims not to wish to celebrate Christmas is the matter of identity. Do Muslims expect Christians or Jews to celebrate Islamic occasions? Does it not sound logical that each culture celebrates its own occasions and rituals? Of course, people who were born Muslims in Muslim countries or communities would like to celebrate their own occasions.

But here we are discussing the issue of those who have converted to Islam. Or those who are Muslim and live in societies with a majority of Christians.

Is it forbidden (Haram) for Muslims to celebrate Christmas?

Jesus in Islam

Prophet Jesus (PBUH) is among the Prophets whose names and stories have been mentioned in many chapters of the Holy Quran. This shows the high status of Prophet Jesus (PBUH) and his respected mother – Mary- for Muslims. Prophet Jesus (PBUH) and his mother are so beloved for Muslims that many Muslims name their children after them, and the Islamic society takes every possible chance to admire their position.

It is for this very high level of respect for the Prophet Jesus (PBUH) that Muslims will be offended when he is called the son of God. Since Allah says in the Holy Quran “ That they attribute to the Most Merciful a son. And it is not appropriate for the Most Merciful that He should take a son. There is no one in the heavens and earth but that he comes to the Most Merciful as a servant.” (19: 91-3)

In the same chapter, Allah says “The Messiah, son of Mary, was not but a messenger; [other] messengers have passed on before him. And his mother was a supporter of truth. They both used to eat food. Look how We make clear to them the signs; then look how they are deluded.” (5:75)

Taking part in Christmas parties for Muslims

The ruling on taking part in Christmas parties is the same as taking part in any other party. It is allowed to participate in Christmas parties if there is no forbidden (Haram) act taking place; such as drinking, backbiting or forbidden (Haram) music, singing, or dancing [i], etc.

In Islamic jurisprudence, there is no harm in celebrating the birthday of Prophet Jesus (PBUH).  Also if Muslims do not wish to celebrate Christmas among their cultural occasion, it is forbidden (Haram) to disrespect Christian rituals.

Do Converts Have any Duty Regarding Their Christian Family?

“And We have enjoined upon man [care] for his parents. His mother carried him, [increasing her] in weakness upon weakness, and his weaning is in two years. Be grateful to Me and to your parents; to Me is the [final] destination. But if they endeavor to make you associate with Me that of which you have no knowledge, do not obey them but accompany them in [this] world with appropriate kindness …” (31:14-15)

The above verses clearly define that respecting and caring for parents in the eyes of God is not because of their religion. But He says that you have to respect them, only because your mother carried you for nine months and fed you when you were a weak baby. Therefore non-Muslim parents have all the rights that Muslim parents have. And there is no difference between Muslim or non-Muslim parents if they ask you to do something which is not accepted by God. In those cases, you have to disobey them BUT keep respecting them and behave kindly towards them.

Congratulating Christmas to Christians

Congratulating Christmas to Christians is not forbidden (Haram), as long as it is not considered to be a confirmation of their belief in Trinity while keeping in mind that you believe that Islam is the last religion sent by God to complete the past religions, but it is rather recommended to respect our relatives, friends or neighbors who are Christians with congratulating them on their happy occasions.

The Duty of Muslims in Celebrating Christmas

Although we discussed that Muslims who live in Islamic countries or Western countries would rather celebrate their own cultural occasions among their Islamic communities, there is a duty upon those Muslims who live in the West and may live with non-Muslim friends and families.

It is a duty upon every individual Muslim to spread the words of God as much as possible. And if a Muslim has the position of clarifying the status of prophet Jesus (PBUH) as a prophet and not the son of God or as a god, then he/ she should not take this opportunity for granted and mention the fact that Jesus (PBUH) was not but a respected Prophet of God.

However, it is not obligatory for Muslims to speak out about this issue when they participate in Christmas parties (in which no forbidden (Haram) act will take place), but if there is a chance of talking about the issue, it would be good to mention the Islamic opinion about the Prophet Jesus (PBUH).

Notes:

[i] Read about forbidden (Haram) music in the related article.

[ii] “This day [all] good foods have been made lawful, and the food of those who were given the Scripture is lawful for you, and your food is lawful for them. And [lawful in marriage are] chaste women from among the believers and chaste women from among those who were given the Scripture before you, when you have given them their due compensation, desiring chastity, not unlawful sexual intercourse or taking [secret] lovers. And whoever denies the faith - his work has become worthless, and he, in the Hereafter, will be among the losers.” (5: 5)

References:

1. celebrating christmas

Making pilgrimage to Karbala, where Imam Hussain (AS) and his loyal companions were bravely martyred, takes one of the highest places in a Shia’s wish list. All around the year, Karbala hosts the pilgrims who want to visit the holy shrine of Imam Hussain (AS). But the pilgrimage in Arbaeen is different.

“Arbaeen” takes place forty days later than “Ashura”. “Arbaeen pilgrimage” is actually one of the largest annual public gathering in the whole world. Millions of Shias and Sunnis or even many Christians, Yazidis and other faiths with various nationalities participate in this grand religious ceremony and gather from all around the world in the city of Karbala. A remarkable number of them takes this trip on foot and walks from Najaf to Karbala (approximately 80 kilometers). 

Many Muslims try so hard to make it to Karbala on Arbaeen and many Iraqis do their best to serve the pilgrims. During these days, copious amount of food, water, as well as small medical facilities which is run by GPs and specialists, and tents for resting are available along the route and in the cities where the pilgrims stay and visit. These services are all provided free by the native people.
Considering this large number of pilgrims and the great amount of money and time that is spent for this pilgrimage, this question may pop into many minds: What is it for?

Many goals and reasons can be mentioned for why we _Shias_ take this trip and go to the Karbala. In this text, we mention one of these reasons which is of great importance.  
Among the many goals of the “Arbaeen walk” ceremony, introducing Imam Hussain (AS) to the whole world seems to be the most significant one. The public gathering of Arbaeen gives us a precious opportunity to make people get to know Imam Hussain’s personality (AS) and understand his message. This unprecedented and unique event that happens only once a year can be so attractive for people around the world who yearn for finding the truth. 

Arbaeen walk is an Exhibition

Arbaeen ceremony is a unique event in which people and society go through a huge change, which isn’t seen in any other part of the world. Millions of people gathering in three or four Iraqi cities in about twelve days just for visiting the holy shrines can be a disaster to any other similar countries, but Iraqi people host this ceremony without any difficulties. In these days unlike other times, money loses its meaning. For maintaining peace and discipline, people themselves are enough and there’s not much need for police forces. People won’t be hungry, homeless or harmed by any person. In these days, people are even braver compared to other days, because they dare to face many problems and dangers that are otherwise intolerable. Even when the ISIS was in Iraq threatening the pilgrims, millions of people participated in this ceremony (1).
In this regard Imam Sadiq (AS) says: 
O God! Our enemies frowned on their journey and threatened them, but it didn’t stop our followers from getting up and departing towards us in spite of the enemy’s opinion (2). 
When people around the world observe this great exhibition, they understand the truth about Islam and Shi’ism which the terrorists like ISIS tried to taint. 

Furthermore, Arbaeen walk offers the whole humanity a glimpse at Islam’s suggested life style and civilized society: A society with no war, no poverty, hunger, and no discrimination. 

The sound of Imam Mahdi (AS)

As said before, introducing Imam Hussain (AS) is the most significant objective of this grand ceremony. The importance of this purpose lies in the fact that introducing Imam Hussain (AS) and his message is actually introducing our only awaited Imam, Imam Mahdi (As) to the whole humanity. By telling people who is Imam Hussain (AS), we are actually making people familiar with the Shia Imams and the massage of this faith. Shias believe their Imams are all like each other and they seek one goal, which is spreading the peaceful message of Islam to the whole world. This is actually the essential message of Islam, too. The Holy Quran says:
It is He who has sent His Messenger with guidance and the true religion, that He may make it prevail over all religions, and Allah suffices as witness (48:28)
Certainly We sent Our messengers with manifest proofs, and We sent down with them the Book and the Balance, so that mankind may maintain justice (57:25)
Imam Mahdi (AS) is the last Imam who is destined to carry out this mission and we, as his followers, are obliged to raise awareness about His mission and himself. When people understand the message of Imam Hussain (AS) they actually understand Imam Mahdi’s message (AS) since there is no difference between them. The Holy Prophet (PBUH & HP) says:
Allah almighty created me and my Household [the twelve Imams] from one same light (3)Imam Sadiq (AS) also says:
There is always a justful successor among us who defend the religion against the falsification of the extremists, plagiarism of the disbelievers and the wrong understanding of the fools. (4)   
According to the prophecies about the last Imam (AS) when he arrives and introduces himself to the people, all the world hears his voice in their language at the same time. Then, Imam Mahdi (AS) introduces himself as the descendant of Imam Hussain (AS):
O people of the world! Indeed my grand ancestor Hussain (AS) was killed while he was thirsty, O people of the world! Indeed he was left on the earth with no cloth, O people of the world! Indeed he was beaten so hard out of animosity (5)

Clearly, when people hear this voice, must know who is Hussain (AS); so, it’s our duty to make them familiar with him. 

Resources 

1. this ceremony
2. Thavab al-A’mal, Sheikh Saduq, Pg.94
3. Avalim al-Olum, al-Bahrani, Vol.15, Pg.155
4. Kafi, Koleini, Vol.1, Pg.32
5.  Ilzam an-Nasib, Al-Yazdi al-Haeri, Vol.2, Pg.233