==================================

He is one of Bukhari's mentors as stated in the latter's Sahih. Ibn Sa`d mentions him on page 282, Vol. 6, of his Tabaqat. He concludes by saying that "Abu Ghassan is trustworthy, truthful, a very staunch Shi`a." Al-Dhahabi mentions him in his Mizan, which proves his reliability and prestige, stating that the man has learned the teachings of the sect of Shi`ism from his mentor al-Hasan ibn Salih, that Ibn Ma`in has said that nobody in Kufa is more accurate in reporting hadith than Abu Ghassan, and that Abu satim has said: "Whenever I look at him, he seems as though he has just left his grave, with two marks of prostration stamped on his forehead."

Al-Bukhari has quoted him directly in many chapters of his Sahih. Muslim has quoted his hadith on criminal penalties in his own Sahih as transmitted by Harun ibn `Abdullah. Those who narrate his hadith in Bukhari are: Ibn `Ayinah, `Abdul-Aziz ibn Abu Salamah, and Isra'il. Both al-Bukhari and Muslim quote his hadith from Zuhayr ibn Mu`awiyah. He died, may Allah have mercy on him, in Kufa in 219.