Abu Ahmad al-Samari: Alas, he does not know what he is saying
Abu Ja'far al-'Uqayli: His Hadith is not to be followed
Abu Hatim al-Razi: Saduq Salih al-Hadith
Abu Hatim ibn Hibban al-Busti: Saduq, he used to make mistakes, he used to recite with melodies in Basra
Abu Dawud al-Sijistani: There is no harm in him
Ibn Hajar al-'Asqalani: Saduq, he makes mistakes
Al-Dhahabi: Known as al-Khurasani
Hammad ibn Salama al-Basri: More memorizing of the Hadith of 'Asim than Hammad ibn Zayd
Zakariya ibn Yahya al-Saji: Saduq, he makes mistakes, he was not precise in Hadith, and he was a man of Sunnah and he used to lead the prayers in the Basra Mosque
Muhammad ibn Isma'il al-Bukhari: More memorizing of the Hadith of 'Asim than Hammad ibn Zayd
Authors of Tahrir Taqrib al-Tahdhib: Saduq Hasan al-Hadith
Nasr ibn 'Ali al-Jahdami: He criticized him for some of the letters
Yahya ibn Ma'in: There is no harm in him, and once: Is he trustworthy? He said: No, and once: He is acceptable because of his truthfulness
Ya'qub ibn Ishaq al-Qarab: There was no one more knowledgeable than him in his time, and he was eloquent and a grammarian