The list of the Companions of Imam al-Hasan (a) contains people mentioned in Shiite sources as companions of or transmitters of hadiths from Imam al-Hasan (a).

Martyrs of Mu'awiya's Period

  1. 'Amr b. Hamiq al-Khuza'i was one of the Sahaba and a companion of Imam 'Ali (a) and Imam al-Hasan (a). He attended the battles of Jamal, Nahrawan and Siffin. 'Amr b. Hamiq was martyred by agents of Mu'awiya b. Abi Sufyan, and his head was the first head that was circulated in cities.
  2. Hujr b. 'Adi was one of the companions of the Prophet (s) and one of the elite companions of Imam 'Ali (a), and was one of the noblemen and wise of Kufa. He had an important role in many battles such as Jamal, Siffin, and Nahrawan. He was martyred in the way of supporting Imam 'Ali (a) by Mu'awiya.
  3. Rushayd al-Hajari was one of the elite companions of Imam 'Ali (a) and Imam al-Hasan (a) who was a member of Shurtat al-Khamis. He was one of the closest people to Imam 'Ali (a) and received 'Ilm al-Balaya wa l-Manaya (the knowledge of calamities and (time of) deaths) from him.

Martyrs of Karbala

  1. Al-'Abbas (a); known as Abū l-Faḍl and Qamar Banī Hāshim (the moon of Banu Hashim), is the son of Imam 'Ali (a) and Umm al-Banin.
  2. Maytham al-Tammar was one of the special companions of Imam 'Ali (a), Imam al-Hasan (a) and Imam al-Husayn (a). He was of the Shurtat al-Khamis who was a group of men who promised Imam 'Ali (a) to help him until their last breath of life.
  3. Habib b. Muzahir was one of Imam 'Ali's (a) special companions. He was from Banu Asad tribe, and lived in Kufa. He was one of the people of Kufa who sent letters to Imam al-Husayn (a) and invited him to Kufa, after Mu'awiya's death. He was martyred at the age of 75 while fighting in Imam al-Husayn's army.
  4. Sa'd b. Harith al-Khuza'i was among the martyrs of Karbala, agents of Imam Ali (a), the companion of Imam al-Hasan (a) and Imam al-Husayn (a) who was martyred in the first attack in the Event of Ashura.
  5. Kurdus b. Zuhayr was a companion of Imam 'Ali (a) who attended the battles of Jamal, Siffin, and Nahrawan. He was also a member of Imam al-Hasan's (a) military force in Kufa. Before Imam al-Husayn's (a) arrival in Karbala, he and his brothers, Qasit and Muqsit joined the Imam's (a) army.
  6. Qasit b. Zuhayr was a companion of Imam 'Ali (a) who attended the three battles of Jamal, Siffin, and Nahrawan. He was also a member of Imam al-Hasan's (a) military force in Kufa.
  7. Shabib b. 'Abd Allah al-Nahshali was among the Tabi'un and the companions of Imam Ali (a) and participated in the battles of Jamal, Siffin, and Nahrawan. After Imam Ali (a) was martyred, he was among the companions of Imam al-Hasan (a) and Imam al-Husayn (a).

Opponents of Peace treaty

  1. Sulayman b. Surad was an honorable Shi'a of Kufa. He was a companion of the Prophet (s), Imam Ali (a), Imam al-Hasan (a) and Imam al-Husayn (a). He fought many battles beside Imam Ali (a). He led the Tawwabun Uprising in 65/684.
  2. Hujr b. 'Adi
  3. Al-Musayyib b. Najaba was among the Tabi'un and companions of Imam Ali (a) and one of the leaders of Tawwabun Uprising.
  4. 'Adi b. Hatim al-Ta'i was a companion of Prophet Muhammad (s) and 'Ali b. Abi Talib (a) and the head of Tay' tribe.
  5. Sufyan b. Abi Layla
  6. Qays b. Sa'd b. 'Ubada was among the companions of the Prophet (s). He was the chief of Khazraj tribe and one of the agents of Imam Ali's (a) government. He was a commander of Imam Ali's (a) army and the army of Imam al-Hasan (a) and was known for his generosity among Arabs. He was appointed by Imam Ali (a) as the agent in Egypt and then in Azerbaijan.

Hadith transmitter

  1. Abu Barza al-Aslami was a companion of the Prophet Muhammad (s) and Imam 'Ali (a). He attended numerous ghazwas as well as the battles of Jamal, Siffin, and Nahrawan.
  2. 'Amir b. Wathila was a companion of Prophet Muhammad (s). He was also a poet and a supporter of Imam Ali (a).
  3. Asbagh b. Nubata was a close and loyal companion of Imam 'Ali (a). He was one of the members of Shurta al-Khamis (A group of elite and devoted soldiers of Imam 'Ali (a)).
  4. Abu 'Amr Zadhan

Others

  1. Jabir b. 'Abd Allah al-Ansari was a companion of Prophet Muhammad (s), he took an oath of allegiance to Prophet Muhammad (s) in the second Pledge at al-'Aqaba. Jabir was a true devotee of Ahl al-Bayt (a) and supporter of Imam 'Ali (a). He was considered a prominent companion of Ahl al-Bayt (a), from Imam 'Ali (a) to Imam al-Baqir (a).
  2. Abu Rafi' a famous companion of the Prophet (s) and his servant who later was freed and became the head of the clan of Al Abi Rafi'. Al-Najashi counted him among "al-salaf al-salih" (righteous pioneers [in Islam]). During the reign of Imam 'Ali (a),[1] he was the treasurer of Kufa.
  3. Jariya b. Qudama was one of the Prophet's (s) sahaba and a companion of Imam Ali (a) and Imam al-Hasan (a). After 'Uthman b. 'Affan's murder in 35/656, he encouraged people of Basra to pledge their allegiance to Imam Ali (a). He was on Imam Ali's (a) side in the battles of Jamal, Siffin, and Nahrawan. After Imam Ali's (a) martyrdom, Jariya went to Mecca and then Medina and encouraged people there to pledge their allegiance to Imam al-Hasan (a).
  4. Harith b. 'Abd Allah was one of the Tabi'un from Kufa and a companion of Imam Ali (a) and one of the first people who pledged their allegiance to him in Medina. Al-Harith al-A'war transcribed Imam Ali's (a) hadiths and sermons, and according to Shushtari, he was the first person who collected Imam Ali's (a) sermons.
  5. Habba b. Juwayn was a narrator of hadith and a companion of Amir al-Mu'minin (a). Al-Shaykh al-Tusi mentioned him as a companion of Imam al-Hasan (a) as well.
  6. Sa'd b. Mas'ud was among the companions of the Prophet (s), Imam Ali (a), and Imam al-Hasan (a) and the uncle of Mukhtar b. Abu 'Ubayd al-Thaqafi. In the battle of Siffin, he was appointed to the government of Mada'in and until the time of Imam al-Hasan al-Mujtaba (a) was in that position.
  7. Sa'id b. Qays was a of Imam Ali (a) and Imam al-Hasan (a). He exhibited gallantry in battles of Jamal and Siffin, and killed many prominent warriors in Mu'awiya b. Abi Sufyan's army. Sa'id was always trusted by Imam Ali (a).
  8. Sulaym b. Qays
  9. 'Abd Allah b. Ja'far was one of the companions of the Prophet (s), Imam Ali (a), and Imam al-Hasan (a). He was the husband of Lady Zaynab (a) -the daughter of Imam Ali (a).
  10. Kumayl was one of Tabi'un of the companions of the Prophet (s) and of the special companions of 'Ali (a) and al-Hasan (a). He was among the Shi'a who swore allegiance to 'Ali (a) and fought in all of the wars against 'Ali's (a) enemies. Imam 'Ali (a) taught the Supplication of Khidr to him which later became know as Kumayl Supplication.
  11. Rifa'a b. Shaddad was a companion of Imam 'Ali (a), he participated in the Battle of Jamal and Siffin, and was the judge of Ahwaz during Imam 'Ali's reign. Rifa'a was one of first people who send a letter to Imam al-Husayn (a) and asked him to come to Kufa. After the Event of 'Ashura', he became one of the leaders of Tawwabun uprising. Afterward, he joined Uprising of al-Mukhtar.
  12. 'Abd Allah b. al-'Abbas was a cousin of the Prophet (s) and 'Ali (a). He narrated many hadiths from the Prophet (s). During the time of the three caliphs before 'Ali (a), Ibn 'Abbas was always of the opinion that 'Ali (a) deserved the caliphate. During the rule of 'Ali (a), Ibn 'Abbas helped him in the battles of Jamal, Siffin and Nahrawan and was appointed by 'Ali (a) to become the governor of Basra.
  13. 'Ubayd Allah b. 'Abbas
  14. 'Adi b. Hatim al-Ta'i
  15. 'Abd Allah b. Wal al-Taymi was among the chiefs of Shi'a in Kufa. He was among the companions of Imam Ali (a) and Imam al-Hasan (a). After Imam al-Husayn (a) was martyred, 'Abd Allah b. Wal became one of the chiefs of Tawwabun movement and was martyred in 'Ayn al-Warda in 65/684.
  16. 'Atiyya b. Sa'd b. Junada al-'Awfi
  17. Hani b. 'Urwa; one of the greatest and closest companions of Imam 'Ali (a). He participated in the battles of Jamal and Siffin and was known as one of the important people in Hujr b. 'Adi's uprising against Ziyad b. Abih.