Abu Al-Fath Al-Azdi: The Imams said: The Tadlis of Ibn `Uyainah is accepted because when he remains silent, he refers to the likes of Ibn Juraij and Ma'mar
Abu Bakr Al-Bazzar: The Imams said: The Tadlis of Ibn `Uyainah is accepted because when he remains silent, he refers to the likes of Ibn Juraij and Ma'mar
Abu Bakr Al-Bayhaqi: Trustworthy, and once: Hadith Scholar, and once: Authoritative and Trustworthy
Abu Hatim Ar-Razi: Trustworthy Imam, and the most knowledgeable of Az-Zuhri's companions: Malik and Ibn `Uyainah, and he was more knowledgeable about the Hadiths of `Amr bin Dinar than Shu`bah
Abu Hatim bin Hibban Al-Busti: From the precise Hadith Scholars and the people of piety and religion, and once: He considered his Tadlis acceptable and said: This is something that is not found in the world except for Ibn `Uyainah, for he used to practice Tadlis, but he would only practice it from a trustworthy and precise narrator. You can hardly find a narration in which Ibn `Uyainah practiced Tadlis except that he indicated his hearing from a trustworthy narrator like himself. Then he gave a similar example with the Marasil (narrations with a missing link in the chain of narrators) of senior companions of the Prophet and that they do not
Abu `Abd Allah Al-Hakim An-Naysaburi: Trustworthy, well-known Hadith Scholar
Ahmad bin Hanbal: The most knowledgeable of the people in the Hadiths of `Amr bin Dinar, he memorized many of them. He made a mistake in the Hadiths of the people of Al-Kufa, and a mistake in the Hadiths of the people of Al-Hijaz in some things
Ahmad bin Salih Al-Jili: Trustworthy and well-known in Hadith
Ibn Hajar Al-'Asqalani: Trustworthy, Hadith Scholar, Faqih (scholar of Islamic jurisprudence), Imam, and Authoritative. However, his memory deteriorated at the end of his life, and he would sometimes practice Tadlis, but only from trustworthy narrators. He was the most knowledgeable of the people in the Hadiths of `Amr bin Dinar
Ibn `Abd Al-Barr Al-Andalusi: The Imams said: The Tadlis of Ibn `Uyainah is accepted because when he remains silent, he refers to the likes of Ibn Juraij and Ma'mar
Ad-Daraqutni: Trustworthy, and once: Hadith Scholar
Adh-Dhahabi: One of the flags (of scholarship), trustworthy, well-known Hadith Scholar, Imam, and once: One of the Imams of Islam
Bishr bin Al-Mufaddal: There is no one left on the face of the earth who resembles Sufyan bin `Uyainah
Sabt bin Al-'Ajami: He did not practice Tadlis except from a trustworthy narrator like himself. He mentioned the acceptance of the scholars of his Tadlis
Sufyan Ath-Thawri: That is one of the two unique ones, how strange he was
`Abd Ar-Rahman bin Mahdi: The most knowledgeable of the people in the Hadiths of the people of Al-Hijaz
`Abd Ar-Rahman bin Yusuf bin Kharash: Trustworthy, reliable, and well-known
`Abd Al-Latif bin Ibrahim bin Al-Kayyal Ash-Shafi`i: One of the flags (of scholarship), trustworthy, Hadith Scholar, Imam. He refuted those who said that he became confused before his death
`Abd Allah bin Wahb Al-Misri: I have not seen anyone more knowledgeable than him in the Book of Allah
`Ali bin Al-Madini: There is no one more precise in the Hadiths of Az-Zuhri than Ibn `Uyainah, and once: It was said to him, 'Is he an Imam in Hadith?' He said: 'He has been an Imam for forty years'
Muhammad bin Idris Ash-Shafi`i: Were it not for Malik and Sufyan, the knowledge of Al-Hijaz would have disappeared, and once: I have not seen anyone more reluctant to give Fatwas (religious rulings) than him
Muhammad bin Sa`d Kathir Al-Waqidi: Trustworthy, well-known, narrator of many Hadiths, and authoritative
Muhammad bin `Abd Allah Al-Makhrami: That is one of the two unique ones
Muhammad bin `Ammar Al-Mawsili: He became confused in the year 179 AH
Authors of Tahrir Taqrib At-Tahdhib: His saying, 'His memory deteriorated at the end of his life,' is not authentic. Adh-Dhahabi described it by saying: 'This is a Munkar (rejected) statement, it is not authentic, nor is it correct'
Hibat Allah bin Al-Hasan At-Tabari: He is above the need for praise due to his well-known status and precision
Yahya bin Sa`id Al-Qattan: The Imam of the people for forty years, and once: I bear witness that he became confused in the year 179 AH, so whoever heard from him in this year and after, then his hearing is of no use. There is no objection to that
Yahya bin Ma`in: He once said: Stronger than Warqa', and once: Sufyan bin `Uyainah narrates from `Amr bin Yahya bin Qamtah, and he narrates from `Amr bin Yahya bin `Amarah, and he narrates from `Amr bin Dinar, and he narrates from `Amr bin `Ubayd. I said to Yahya bin Ma`in, 'Ibn `Uyainah?' He nodded his head, meaning: Yes