Abu al-Hasan ibn al-Qattan al-Fasi: Unknown
Abu Hatim ibn Hibban al-Busti: Mentioned him among the trustworthy narrators
Ibn Hajar al-Asqalani: Trustworthy
al-Daraqutni: Trustworthy
al-Dhahabi: Trustworthy
Muhammad ibn Ismaeel al-Bukhari: Mentioned him in al-Tarikh al-Kabir, and said: Mawla of Abi Ahmad, heard from Abu Hurairah, and Abu Sa'id, narrated from him Dawud
Muhammad ibn Sa'd Katib al-Waqidi: Trustworthy, narrated few hadiths