Abu Ahmad ibn Adi al-Jurjani: His hadith is mostly upright, and he is among those whose hadith is written and considered evidence. He narrated many hadiths, his hadiths in general are upright, and he is among the truthful.
Abu Ishaq al-Asbahani: Israel didn't leave us a hole or a gap except that he filled it with books.
Abu Hatim al-Razi: Trustworthy, truthful, among the most pious companions of Abu Ishaq.
Abu Dawud al-Sijistani: Israel is more correct in hadith than Sharik.
Abu 'Abd Allah al-Hakim al-Naysaburi: The trustworthy, the authority.
Abu Isa al-Tirmidhi: Israel is firm in (narrating from) Abu Ishaq.
Abu Muhammad ibn Hazm al-Zahiri: He weakened him.
Abu Nu'aym al-Fadl ibn Dukin: When asked who is more firm, Israel or Abu 'Awanah, he said Israel.
Ahmad ibn Hanbal: Our sheikh was trustworthy, and he marveled at his memorization. And once: Israel, on the authority of Abu Ishaq: There is leniency in him. And once: Israel is firm in hadith. And once: On the authority of 'Abd al-Malik ibn 'Abd al-Hamid al-Maymuni: Good in hadith.
Ahmad ibn Shu'ayb al-Nasa'i: There is no harm in him.
Ahmad ibn Salih al-Jili: His hadith is acceptable. And once: Trustworthy, trustworthy, truthful, average.
Ibn Hajar al-'Asqalani: Trustworthy, they criticized him without proof. And once: His hearing from his grandfather, Abu Ishaq, is extremely accurate because of his adherence to him, and he was close to him. And once: One of the firm narrators, al-Qattan was biased against him, and the bias was against his sheikh, Abu Yahya.
Al-Dhahabi: Al-Bukhari and Muslim relied on him in the fundamentals, and he is like a pillar in firmness, so don't pay attention to the weakening of those who weakened him.
Sufyan al-Thawri: When he was told that he had narrated hadith, Sufyan said, 'A spring has sprung up in the tribe of Sabi', but it is salty.'
Abd al-Rahman ibn Mahdi: Israel is more firm in (narrating from) Abu Ishaq than Shu'bah and al-Thawri. And once: A thief who steals hadith.
Ali ibn al-Madini: Weak.
Isa ibn Yunus al-Sabi'i: He memorizes the hadith of Abu Ishaq just as a man memorizes a Surah from the Quran.
Muhammad ibn Sa'd, the author of al-Waqidi: Trustworthy, and people narrated much hadith from him, and some of them consider him weak.
Muhammad ibn 'Abd Allah ibn Numayr: Trustworthy.
Yahya ibn Adam al-Qurashi: We used to write from his memorization, and he used to not memorize, then he memorized later.
Yahya ibn Sa'id al-Qattan: He didn't care about him.
Yahya ibn Ma'in: On the authority of 'Uthman ibn Sa'id, he said: Trustworthy. And once: More firm in hadith than Sharik. And once: He said: Sharik was asked, 'Who do you prefer in (narrating from) Abu Ishaq, Sharik or Israel?' Sharik said, 'I prefer the one who is older, and Israel is truthful.'
Ya'qub ibn Shaybah al-Siduusi: Good in hadith, and there is leniency in his hadith. And once: Trustworthy, truthful, but not strong in hadith, nor is he one who forgets.