Bakr ibn Muḍar said: A letter from Marwān ibn Muḥammad reached Hawthara (1), the governor of Egypt:
“I have dispatched to you a desert Bedouin, eloquent by nature though unschooled in conduct. Assemble for him a man who will steer him in judgment and set his speech aright.”
The people were unanimous in selecting al-Layth ibn Saʿd, and present among them were his two teachers, Yazīd ibn Abī Ḥabīb and ʿAmr ibn al-Ḥārith.
Aḥmad ibn Ṣāliḥ said: A legal problem baffled al-Rashīd, so he gathered the jurists of the realm and even summoned al-Layth, and al-Layth resolved it for him.
Saʿīd ibn Abī Maryam related: Al-Layth narrated to us, saying,
“I arrived in Mecca and went to Abū al-Zubayr. He handed me two notebooks, and I left with them. Then I thought to myself, ‘What if I were to go back and ask him, “Did you hear all of this from Jābir ibn ʿAbd Allah?”’
He replied, ‘Some of it I heard directly from him, and some of it was conveyed to me.’
I said, ‘Mark for me what you actually heard.’ So he marked for me what I had with me (2).”
I say: In his day al-Layth possessed elevated chains of transmission. He narrated from ʿAṭāʾ on the authority of ʿĀʾishah; from Ibn Abī Mulaykah on the authority of Ibn ʿAbbās; from Nāfiʿ on the authority of Ibn ʿUmar; and from al-Maqburī on the authority of Abū Hurayrah—this level was the highest available in his time.
Yet you will also find him transmitting through lower isnāds, undeterred by the breadth of his learning, for he even narrated ḥadith from al-Hikl ibn Ziyād—