Abu Hatim al-Razi: Truthful, trustworthy
Abu Zur'ah al-Razi: More knowledgeable than Sahl ibn 'Uthman
Abu 'Awanah al-Isfarayini: More noble than Sahl ibn 'Uthman
Ahmad ibn Shu'ayb al-Nasa'i: Reliable
Ibn Hajar al-'Asqalani: Trustworthy
Muslim ibn al-Qasim al-Andalusi: Trustworthy