Abu Ahmad al-Hakim: He is not considered strong by them
Abu Hatim al-Razi: Weak, he narrated Munkar (rejected) Hadiths from Salim, and his narrations are Munkar
Abu Hatim ibn Hibban al-Busti: He was among those who would narrate strange Hadiths from trustworthy narrators, it is not permissible to write down his Hadith except as a matter of curiosity
Abu Dawud al-Sijistani: He is not reliable
Abu Zur'a al-Razi: Weak in Hadith, and once said: He was not among those who preserve Hadith
Abu Isa al-Tirmidhi: He is not strong in Hadith and he narrates unique Hadiths
Ahmad ibn Hanbal: Weak, Munkar al-Hadith
Ahmad ibn Shu'aib al-Nasa'i: He is not trustworthy and once said: Weak
Ahmad ibn Salih al-Jili: His Hadith is written down, but he is not strong
Ibrahim ibn Ya'qub al-Jawzajani: Weak
Ismail ibn Ulayyah: He does not memorize Hadith well, and once said: Weak in Hadith
Ibn Hajar al-'Asqalani: Weak
al-Daraqutni: Weak, not very accurate, and once said: Weak in Hadith, not reliable
al-Dhahabi: They considered him weak
Zakariya ibn Yahya al-Saji: Weak, he narrates Munkar Hadiths from Salim
Ali ibn al-Junayd al-Razi: Almost abandoned
Amr ibn Ali al-Fallas: Weak in Hadith, he narrated Munkar Hadiths from Salim
Muhammad ibn Isma'il al-Bukhari: He is questionable, and once said: His Hadiths are not corroborated
Muhammad ibn 'Amr al-Mawsili: Weak
Yahya ibn Ma'in: He is not reliable, and once said: Gone astray