Abu al-Fath al-Azdi: He narrated Munkar reports on the authority of al-'Ala'. Adh-Dhahabi said, "Pay no attention to al-Azdi's statement."
Abu al-Qasim ibn Bashkuwal: A righteous Sheikh
Abu al-Walid al-Baji: Abu Dharr said to me, "He is from Sana'a, Sham." And Allah knows best what is correct.
Abu Hatim al-Razi: His Hadith is sound, and once he said: "His Hadith is to be written, and his place is truthfulness. However, there is some forgetfulness in his Hadiths."
Abu Dawud al-Sijistani: He is weak in hearing.
Abu Zur'ah al-Razi: He is acceptable.
Ahmad ibn Hanbal: He is acceptable, and once he said: "Trustworthy."
Ibn Hajar al-'Asqalani: Trustworthy, he may have made mistakes. Once he said: "And al-Azdi erred and said, 'He narrated Munkar reports on the authority of al-'Ala' ibn 'Abd al-Rahman.' He has Hadiths in al-Bukhari that are corroborated."
Adh-Dhahabi: He rejected al-Azdi's statement, and said: "Pay no attention to him." He mentioned him in his book: "Those who were criticized while they are trustworthy."
Zakariyya ibn Yahya al-Saji: There is weakness in his Hadith.
Ali ibn al-Madini: We used to consider him trustworthy, but his hearing was criticized as being 'Aradh, as if he was narrating from memory.
Yahya ibn Ma'in: Trustworthy, but he was criticized for being 'Aradh, meaning that his hearing from his Sheikhs was by reading to them. And once he said: "He is acceptable." And once he said: "How good his condition is if all his hearing was 'Aradh," as if he meant that some of it was from memory.
Ya'qub ibn Sufyan al-Faswi: Trustworthy and acceptable.