Abu Ahmad ibn Adi al-Jurjani: He mentioned some hadiths, and said: He has more than what I mentioned, and some of his hadiths are upright, and some are not followed by him.
Abu Bakr al-Bazzar: Not a حافظ (preserver), not strong.
Abu Ja'far al-'Uqayli: He mentioned a hadith, and said: He is not known except by it, and no one follows him except those like him or similar to him.
Abu Hatim al-Razi: Lenient in hadith, not strong.
Abu Hatim ibn Hibban al-Busti: He was among those who would narrate fabricated reports from the trustworthy and famous, so that when he heard it from the fabricators of hadith, he would testify to its fabrication.
Abu Hafs Umar ibn Shahin: He authenticated him, and once said: Trustworthy, and said: It is possible that Yahya ibn Ma'in knows more about Uqbah than Ahmad ibn Salih.
Abu Dawud al-Sijistani: Weak
Ahmad ibn Hanbal: He authenticated him, and once said: Al-Bara' ibn Abdullah al-Ghunaawi is more beloved to me than him.
Ahmad ibn Shu'ayb al-Nasa'i: Not trustworthy.
Ahmad ibn Salih al-Misri: Trustworthy
Ibn Hajar al-'Asqalani: Weak and may have concealed the identity of his teachers (tadlis).
Al-Dhahabi: Weak
Zakariya ibn Yahya al-Saji: He is not among those whose hadith is used as evidence, and there is weakness in him.
Ali ibn al-Madini: He was weak.
Amr ibn Ali al-Fallas: He was weak, his hadith is unreliable, he is not a hafiz.
Authors of Tahrir Taqrib al-Tahdhib: Weak, and his saying: He may have concealed the identity of his teachers (tadlis), we did not find any predecessor for him in this.
Yahya ibn Ma'in: Not trustworthy, and he once said: He is nothing.
Ya'qub ibn Sufyan al-Faswi: Weak