Biography of Abu Layla al-Ansari
Abu Laila Al-Ansari, the father of Abdul Rahman bin Abi Laila, his name differed, so Another report states: Yasar bin Numayr; according to another report, Aws bin Khouli; in another account, Dawud bin Bilal; some reports state instead: Bilal bin Bilal. And Ibn Al-Kalbi said: Abu Laila Al-Ansari's name is Dawud bin Bilal bin Bilal bin Uhayha bin Al-Jalah bin Al-Harish bin Jajabi bin Kalfa bin Awf bin Amr bin Awf bin Malik bin Aws Al-Ansari Al-Awsi accompanied the Prophet ﷺ and witnessed Uhud and subsequent scenes with him. Then he moved to Kufa, where he had a house in Juhayna. He and his son Abdul Rahman witnessed all of his scenes with Ali bin Abi Talib. His son Abdul Rahman narrated on his authority.
Ibrahim, Ismail, and others told us, with their chain of transmission to Muhammad bin Isa: Hanad told us, Ibn Abi Zaida told us, on the authority of Ibn Abi Laila, on the authority of Thabit Al-Banani, on the authority of Abdul Rahman bin Abi Laila, he said: Abu Laila said: The Messenger of Allah ﷺ, said: "If a snake appears in a dwelling, say to it: We ask you, in the covenant of Noah, peace be upon him, and in the covenant of Solomon, the son of David, not to harm us, but if it returns, then kill it."