Abu Hatim ibn Hibban al-Busti: He mentioned him among the trustworthy narrators.
Ahmad ibn Hanbal: I knew him for a long time, I met him during the days of al-Mu'tamir in Basra and Baghdad, and he was a close companion of Yahya ibn Sa'id.
Ibn Hajar al-'Asqalani: Trustworthy
Musaddad ibn Musarhad: Trustworthy but extravagant in spending
Muslim ibn al-Qasim al-Andalusi: Trustworthy
Mu'awiyah ibn 'Abd al-Karim al-Ziyad: I witnessed Basra when people used to say: There is no one more intelligent in Basra than Abu al-Walid, and after him Abu Bakr ibn Khallad