Hadith 21: The Condition of Honor

Imam Sadiq (as) said: Whoever wants to be in the neighborhood of the Prophet (pbuh&HP) and next to Ali (AS) and Fatima (AS) should not leave the pilgrimage of Imam Hussain (AS).  
Wasa'il al-Shi'ah, vol. 10, p. 331, p. 39

Hadith 22: Pilgrimage, Divine Duty

Imam Sadiq (as) said: If one of you observes the Ihram of Hajj for the entire of his life but does not visit Imam Hussain (as), he has left the right of the Messenger of Allah (PBUH&HP) because the right of Hussain (as) is a divine duty and obligatory for every Muslim.
 Wasa'il al-Shi'ah, vol. 10, p. 333

Hadith 23: Karbala, the Kaaba of Perfection

Imam Sadiq (as) said: Whoever does not visit the grave of Imam Hussain (as) until he dies, his faith will be incomplete and his religion will be incomplete, and when he goes to heaven, he will be lower than the believers there. 
Wasa'il al-Shi'ah, vol. 10, p. .335

Hadith 24: From Pilgrimage to Martyrdom

Imam Sadiq (as) said: Do not leave the pilgrimage of Imam Hussain (as) and recommend it to your friends and companions as well! May Allah prolong your life, increase your sustenance, and may Allah bless you alive and you will not die except as a martyr. 
Wasa'il al-Shi'ah  vol. 10, p. 335

Hadith 25: The Hadith of Love

It was narrated from Imam Sadiq (as) that he said: Whoever Allah wants good, will put the love of Hussain (AS) and his pilgrimage in his heart, and whoever Allah wants bad, will have him hate Hussain (AS) and anxious with his pilgrimage.
 Wasa'il al-Shi'ah  vol. 10, p. 388, Sea of Lights, vol. 98, p. 76

Hadith 26: A Sign of Being a Shiite

Imam Sadiq (as) said: Whoever does not visit the grave of Imam Hussain and dies as our Shiite and dies, is not our Shiite, and even if he is from the people of Paradise, he is the guest of the people of Paradise.
Kamel Al-Ziyarat, p. 193, Bihar Al-Anwar, vol. 98, p.4

Hadith 27: Ascension Platform

Imam Sadiq (as) said: Whoever visits the grave of Hussain (as) and has knowledge of the right of that Imam, Allah Almighty will register him in the highest rank.
Man la yahzurul Faqih, vol. 2, p.581

Hadith 28: The School of Knowledge

Imam Musa Kadhim (as) said: The least reward that is given to the pilgrim of Imam Hussain (as) on the banks of the Euphrates is that all his sins, before and after, are forgiven. Provided that he knows the right, honor and guardianship of that Imam.
Mustadrak al-Wasa'il, vol. 10, p. 236, quoting Kamil al-Ziyarat, p. 138

Hadith 29: Like the Pilgrimage of Allah

Imam Reza (as) said: Whoever visits the grave of Imam Hussain (as) on the banks of the Euphrates is like the one who has visited Allah. 
Mustadrak al-Wasa'il, vol. 10, p. 250, quoting in full

Chapter Three: Ashura and Arbaeen

Hadith 30: Pilgrimage at Ashura

Imam Sadiq (as) said: Whoever visits Imam Hussain (as) on the day of Ashura, heaven will be obligatory for him. 
Iqbal al-A'mal, p. 568

Hadith 31: Above Prosperity

Imam Sadiq (as) said: Whoever wakes up on the night of Ashura next to the shrine of Imam Hussain (as), on the Day of Judgment he will rush to Allah stained in his blood, like someone who was killed in Karbala next to Imam Hussain (as). 
Wasaelu shiah, vol. 10, p.372

Hadith 32: Signs of Faith

Imam Hassan Askari (as) said: The signs of a believer are five: 

1 Fifty prayers 

2 Arbaeen pilgrimage

3 Ring in the right hand 

4 Prostrating on the ground 

5 Saying loudly the name of Allah, (Bismillah Rahman Rahim)

 Wasaelu shia, vol. 10, p. 373, and also Al-Tahdhib, vol. 6, p. 52

Chapter Four: Torbat and Tasbih of Love

Hadith 33: His Porch 

The Prophet of Islam (PBUH&HP) said: Know that the answer to prayer is under the dome of his shrine and healing is in his soil, and the Imams (as) are of his children.
 Mustadrak al-Wasa'il, vol. 10, p.335

Hadith 34: Soil and Training

Imam Sadiq (as) said: Take your children with the soil of Hussain (as) (Karbala) because the soil of Karbala insures your children. 
Wasaelu Shiah, vol. 10, p.410

Hadith 35: The Greatest Medicine

Imam Sadiq (as) said: The cure for any pain is in the soil (torbat) of Hussain (as) and it is the greatest medicine. Kamil Al-Ziyarat, p. 275 and Wasa'il al-Shi'ah, vol. 10, p. 410

Hadith 36: Torbat (soil of Karbala) and seven hijabs

Imam Sadiq (as) said: Prostration on the soil of Hussain (as) tears the seven veils. 
Mesbah al-Muttahid, p. 511, and Bihar al-Anwar, vol. 98, p. 135

Hadith 37: Prostration on the Soil of Love

Imam Sadiq (as) did not prostrate on the ground except on the soil of Hussain (as) and he did this in violence for the sake of Allah.
Wasailu shiah vol. 3, p.608

Hadith 38: Rosary with the Soil of Karbala

Imam Sadiq (as) said: Prostration on the soil of Karbala can light up to the seventh earth, and whoever has a rosary from the soil of the shrine of Hussain (as) with him, is a truthful person, even if he says nothing.
Man la yahzurulFaqih vol 1 p 268 

Hadith 39: Healing Soil

Imam Kadhim (as) while narrating a hadith announcing his death, said: do not take anything from the soil of my grave to seek blessings, because it is forbidden for us to eat any soil except the soil of my grandfather Hussain (as), Allah Almighty has healed only the soil of Karbala for the Shiites and our friends. 
Jami ahadith, vol. 12, p.533

Hadith 40: One of the Four Needs

Imam Musa ibn Ja'far (as) said: Our needs are four things:

1. Prayer mat on which prayers are offered.

2. Rings on the finger

3. Toothbrush with which to brush teeth

4. A rosary from the shrine of Imam Hussain (as) Tahdhib al-Ahkam, vol. 6, p. 75
 

Every year on the 20th of Safar, the second month in Hijri Calendar, a huge number of people from all over the world, Muslim or even non-Muslim, gather in Iraq to take part in a symbolic walk. People of Iraq for months before this day, eagerly prepare themselves to welcome the visitor of Imam Hussain’s (AS) shrine. They find it a great honor to serve those who are participating in this event and are paying a visit to Imam Hussain’s (AS) shrine. Iraq on this period becomes the site of the purest and most humane manifestations. 

But, one might wonder what is the reason behind all these efforts? Why would someone walk a long distance, bearing all the difficulties on his/her way, to reach a shrine? What is it that drives this huge number of people here? 

In what follows, you will find out about Arbaeen and the ceremonial walk on this day.

1. When is Arbaeen?

Arbaeen is the Arabic word for forty, and it marks the 20th of Safar, the fortieth day after Imam Hussain’s (AS) martyrdom on the day of Ashura, who was martyred in the event of Karbala along with his companions in the cruelest and most inhumane way possible. 

2. What Happened on Arbaeen at 61th of Hijri year? 

After the event of Karbala, Imam Hussain’s (AS) family including his sister Lady Zainab (AS) and his son Imam Sajjad (AS), were taken as prisoners to Sham (Damascus) to Yazid’s court. Imam Hussain’s (AS) head was also sent to Yazid’s court along with his family [1].

According to some historical accounts [2], some of the members of Imam Hussain’s (AS) family after being released from the bondage of Yazid forces, returned to Karbala from Sham (Today’s Damascus) to visit Imam Hussain’s (AS) grave. Also, some believe that Imam Hussain’s (AS) head which was taken to Sham by Yazid’s army was brought back to Karbala on this day and buried with his body [3] & [4]. 

3. What is the philosophy behind visiting Imam Hussain’s (AS) shrine?

But these are not the only reasons behind the commemoration of Arbaeen every year. Visiting Imam Hussain’s (AS) shrine is one of the recommended deeds at any time of the year, especially in Arbaeen [i]. Also, Imam Baqer (AS) enumerates the several benefits of this action. These include the increase in wealth, acceptance of prayers by Allah, longer life, and pardoning of the sins [5].  

But, why would visiting Imam Hussain’s (AS) shrine be of such importance? It is not where we are visiting, but who we are visiting and what he taught us that makes this action so worthy of attention. In fact, in paying a visit to Imam Hussain’s (AS) shrine, we try to remind ourselves of these two messages:

     1. To never surrender to injustice and oppression, as Imam Hussain (AS) did not yield to the tyrant of his time.

    2. To always be eager in improving and reforming ourselves and our society, as Imam Hussain (AS) answered people’s call for improvement and did his best to help them, despite the fact that his will remained unfulfilled due to his enemies’ deception.  

Now, we can better understand the Prophet’s (AS) conviction that Imam Hussain’s (AS) personality would forever guide the humanity toward everlasting peace and success. And ignoring the values he emphasized would cause eternal distress and calamity [6].  

4. Why visiting Imam Hussain’s (AS) shrine is recommended on special occasions (e.g., Arbaeen)?

Visiting Imam Hussain’s (AS) shrine is more recommended on some occasions, especially Arbaeen which could be because of the history of this day. Yet, this does not mean that this action cannot be done on any other days of the year.    

But, this is not the only reason for this huge number of people to gather together on this day. In fact, they are all driven by the lasting message that Imam Hussain (AS) left for us through his courageous and rightful movement. That is the urge to stand against injustice, oppression and to strive in the way of improving their situation socially or individually. Arbaeen walk is where people reunite to commemorate these lessons of Imam Hussain’s (AS) revolution together. 

5. How long does it take to walk from Najaf to Karbala?

The journey on foot from Najaf to Karbala which is called Arbaeen walk takes almost three days. But, everything is ready for those who want to take part in this life-changing walk. Many camps (Mawkib) are prepared on this way by people voluntarily which provide free food and accommodations for the respected pilgrims of Imam Hussain’s (AS) shrine. 

6. How many people gather on this walk annually?

Muslim or non-Muslim, a large number of people take part on this journey.  According to the Independent: “Nusayyef al-Khattabi, who heads the Karbala provincial council, said he expected the total number of visitors over several days to range ‘between 17 million and 20 million’” [8].

7. Is  Arbaeen’s Walk an obligatory ritual? 

While Arbaeen Walk is one of the greatest Muslim gatherings, it is not an obligatory ritual. In other words, it cannot be considered as one of the practical principles of Islam (e.g., prayer (Salat), fasting (Sawm), Khums, Hajj, etc.) which a Muslim is required to perform. Participating in this journey is totally up to your choice, decision, and interest. Yet, Arba’een walk is a recommended ritual which carries many spiritual benefits for the one who takes part in it. 

8. Who can participate in Arbaeen’s walk?

Anyone, from any nationality, religion or any age, can join this walk. This is a gathering of those who respect humanity and peace, are after making changes for the better and do not surrender to injustice. As Imam Hussain (AS) believed being free-spirited and honest is what guarantees human dignity [9]. So, as long as you believe in these values, you are most welcomed on this journey. 

9. How can you join Arbaeen’s walk?

It only takes your decision. And you might need to prepare some necessary things to carry with you in this walk. Also, it is better to be both physically and spiritually ready for this experience. Since, like many other life-changing experiences, it has its own hardships and challenges.

Note that the walk starts three days before Arba’een so that you will reach Imam Hussain’s (AS) shrine on Karbala on this day. So, you should start your journey from the 17th of Safar and finish it on 20th.  

10. What if we couldn’t travel to Karbala? What can we do instead?

While visiting Imam Hussain’s (AS) shrine on Arba’een is a recommended deed, what matters most is to be aware of the philosophy behind this action. Imam Hussain’s (AS) universal and all-encompassing message, is not limited to an especial location or a specific time [10].

We can declare our commitment to Imam Hussain’s (AS) cause anywhere and at any time. So, if you couldn't manage to take part in Arba’een’s ceremony, there are some actions that would help you benefit from this occasion spiritually, such as reciting the Ziarat al-Arba’en or Ziarat al-Ashura. The least you can do is to send your peace and salutations to Imam Hussain (AS) wherever you may be:

Peace be upon Hussain (AS) and Ali ib al-Hussain and Hussain’s children and Hussain’s companions [11] 

Notes:
[i] Imam Hassan al-Askari (AS) told in a hadith that, among the signs of a faithful person, is visiting Imam Hussain’s (AS) shrine [7].

References:

1. for more information see Salam Islam’s ebook: 40 Points about Imam Hussain (AS) and the Event of Karbala
2. Ibn Tawus, 'Ali b. Musa, Al-Luhuf 'ala qatla l-tufuf, Uswi, Qom, 1414 AH.
3. Al-Biruni, Abu Rayhan, The Remaining Signs of Past Centuries, p.331.
4. Qazi al-Tabataii, Muhammad Ali, A Research on the first Arba’een of the Leader of Martyrs (Imam Hussain (AS)), vol.3, p.304. 
5. Mustadrak al-Wasail, vol.10, p.239. 
6. Hashim al Bahrani, Al-Burhan Fi Tafsir al-Quran, vol.3, p.232. 
7. Shaykh Tusi, Tahdhib al-Ahkam , vol.6, p.52.  
8. Bihar al-Anwar, vol. 45, p.49.
9. Mustadrak al-Wasail, vol.10, p.309.
10. Ziarat al-Ashura