Abu Hatim Al-Razi: Truthful
Abu Muhammad ibn Hazm Adh-Dhahiri: His confusion does not harm him
Abu Ya'la Al-Khalili: Trustworthy
Ahmad ibn Hanbal: How precise and accurate his hadith was, and how keen he was on preserving the letters. He was eloquent and his status was very high. And once: He was accurate in taking (hadith), and once: More sound than Al-Aswad
Ahmad ibn Shu'ayb An-Nasa'i: Trustworthy
Ahmad ibn Salih Al-Jili: He considered him trustworthy
Ishaq ibn Abdillah Al-Khushk: Hajjaj ibn Muhammad asleep is more trustworthy than Abd Ar-Razzaq awake
Ibn Hajar Al-'Asqalani: Trustworthy, sound, he became confused at the end of his life when he came to Baghdad before his death. And once: One of the most sound narrators, they all agreed on his trustworthiness, and Abu Al-'Arab As-Saqali mentioned him among the weak narrators because he changed at the end of his life and became confused, but his confusion does not harm him
Adh-Dhahabi: His hadith is in the main books of Islam, and I do not know of anything that has been criticized about him. And once: One of the great hadith scholars
Al-Ma'li ibn Mansur Al-Razi: I saw the companions of Ibn Juraij in Basra, and I did not see anyone more sound than Hajjaj
Abd Al-Baqi ibn Qani' Al-Baghdadi: Trustworthy
Ali ibn Al-Madini: Trustworthy
Muhammad ibn Sa'd, the scribe of Al-Waqidi: Trustworthy, truthful, God willing, and he had changed at the end of his life
Muslim ibn Al-Hajjaj An-Naysaburi: He considered him trustworthy
Muslimah ibn Al-Qasim Al-Andalusi: He considered him trustworthy
Yahya ibn Ma'in: I have not seen anyone in Basra more sound than Hajjaj