Abu Hatim ibn Hibban al-Busti: Upright in Hadith
Ibn Hajar al-Asqalani: Truthful
al-Daraqutni: Trustworthy
Muhammad ibn Ismail al-Bukhari: His hadiths are well-known
Authors of Tahrir Taqrib al-Tahdhib: Trustworthy, narrated from him a group of trustworthy narrators, including Abu Dawud, who only narrates from those he considers trustworthy, and no criticism is known about him at all