Biography of Anis ibn Mu'adh
Ibn Hisham: Anis ibn Mu'adh ibn Anas ibn Qais ibn Ubaid ibn Zaid ibn Mu'awiya ibn Amr ibn Malik ibn al-Najjar al-Ansari al-Khazraji al-Badri, and it was said: his name was Anas, and it was said in his genealogy: Mu'adh ibn Qais.
He was narrated by Abu Nu'aym alone, and he said: 'Urwah ibn al-Zubayr mentioned the names of the Ansar from Banu 'Amr ibn Malik ibn al-Najjar who witnessed Badr: Anis ibn Mu'adh ibn Qais.
Abu Bakr said, from Ibn Ishaq on the names of those who witnessed Badr from Banu 'Amr ibn Malik ibn al-Najjar, who are the Banu Hadila: Anis ibn Mu'adh ibn Anas ibn Qais, and his genealogy as mentioned.
He was narrated by Abu Nu'aym, and Abu Musa did not verify him on Ibn Mandah, and it was his habit to verify those like him.