Qasim ibn Muhammad ibn Abi Bakr
Al-Qāsim ibn Muhammad ibn Abī Bakr (Arabic: قاسم بن محمد) (born 36 or 38 AH and died 106 AH  or 108 AH; corresponding to c. 660/662 and 728/730) was an important jurist in early Islam. He is considered the fourth in the Naqshbandi Golden Chain of Sufi masters. Naqshbandis also consider him to have passed the chain to his maternal grandson Ja'far al-Sadiq.
قاسِم بِن مُحمّد بِن أبي بَكَر ٱلصِدّيق
Qāsim's name in Arabic calligraphy
|Born||36 or 38 AH|
|Died||106 AH, 108 AH|
|Spouse||Asma bint Abdul-Rahman ibn Abi Bakr|
|Children||Umm Farwah bint al-Qasim |
Abdur-Rahman ibn al-Qasim
|Era||Islamic golden age|
|Main interest(s)||Sunnah, Hadith, fiqh and tafsir|
Al-Qāsim ibn Muhammad ibn Abī Bakr was born on a Thursday, in the month of Ramadan, on 36 / 38 AH (approximately).
Al-Qāsim's father was Muhammad, son of the first Rashidun Caliph, Abu Bakr. His paternal aunt was Aisha, one of the wives of the Islamic prophet Muhammad. Some traditions state that Al-Qāsim's mother was a daughter of Yazdegerd III and a sister of Shahrbanu, the mother of fourth Shi'a Imam, Ali ibn Husayn.
Al-Qāsim married Asma, a daughter of his paternal uncle Abdul-Rahman ibn Abi Bakr. They were the parents of a daughter, Umm Farwah. The latter later married Ali's son Muhammad al-Baqir and became the mother of the sixth Shi'a Imam, Ja'far as-Sadiq. Al-Qāsim also had a son named Abdur-Rahman.
Aisha lived a very long time and taught her nephew Qasim ibn Muhammad ibn Abi Bakr. Many Hadith are quoted through Qasim.
Al-Qāsim ibn Muhammad ibn Abi Bakr was one of the seven most famous jurists in Medina, and was considered as the most knowledgeable among them. He was highly influential in disseminating early traditions of hadith, fiqh (jurisprudence) and tafsir (exegesis) of the Qur'an.
He was a pious imam and was very knowledgeable in the narration of the Traditions. Abu Zannad said, "I never saw anyone better than him in following the Sunnah of the Prophet (s). In our time no one is considered perfect until he is perfect in following the Sunnah of the Prophet and Qasim is one of the perfected men."
He was among The Seven Fuqaha of Medina who were largely responsible for the transmission of knowledge from Medina and were the source of much of the information of Islam and the Sunnah available today.
He left and went to al-Qudayd, a place between Makkah and Madinah on the 9th of Muharram, where he died. The year was 108 (or 109) AH/730 or 731 CE, and he was seventy years old.
Abdu r-Rahman ibn Abi Zannad said that his father mentioned, "I did not see anyone who knew the Sunnah better than al-Qasim."
According to the 11th-century Hilyat al-Awliya: "He was able to extract the deepest juristic rulings and he was supreme in manners and ethics."
Imam Malik narrated that Umar ibn Abd al-Aziz, considered the sixth rightly-guided caliph (after Abu Bakr, Umar, Uthman, Ali and Hasan) said, "If it were in my hands, I would have made al-Qasim the caliph in my time."
Sufyan said, "Some people came to al-Qasim with charity which he distributed. After he distributed it, he went to pray. While he was praying, the people began to speak negatively about him. His son said to them, "You are speaking behind the back of a man who distributed your charity and did not take one dirham from it for himself." Quickly his father scolded him saying, Do not speak, but keep quiet." He wanted to teach his son not to defend him, as his only desire was to please God. He had no concern for the opinion of people.
Yahya ibn Sayyid said, "We never found, in our time in Madinah, anyone better than al-Qasim." Ayyub as-Saqityani said, "I have not seen anyone better than Imam Qasim. He left 100,000 dinars behind for the poor when he died, and it was all from his lawful earnings."
"I never saw a faqih with more knowledge than al-Qasim. I never saw anyone who had more knowledge of the Sunna than him."
"If I had authority in the matter, I would appoint the blind one of Banu Taym," meaning al-Qasim ibn Muhammad.
Early Islam scholarsEdit
- Biography of Imam Al Qasim Ibn Muhammad by www.at-tawhid.net
- The Four Imams by Muhammad Abu Zahrah, chapter on Imam Malik Archived September 29, 2007, at the Wayback Machine
- Shaykh Muhammad Mahdi Shams al-Din, The Authenticity of Shi'ism, Shi'ite Heritage: Essays on Classical and Modern Traditions (2001), p. 49 
- Imam Al-Nawawi, Musa Furber, Nuh Ha Mim Keller, Etiquette with the Quran (2003), p. 174