Abu Ahmad ibn 'Adi al-Jurjani: I hope there is no problem with him, he makes mistakes in some of his narrations
Abu Hatim al-Razi: Saduq (truthful)
Abu Hatim ibn Hibban al-Busti: He did not enter the Tabi'een even though he saw some of the Companions, because he saw Amr ibn Harith when he was a young boy and did not memorize anything from him
Ahmad ibn Hanbal: Those who wrote about him in the past considered his hearing to be accurate, and he denied seeing Amr ibn Harith
Ahmad ibn Shu'ayb al-Nasa'i: There is no problem with him
Ahmad ibn Salih al-Jili: Thiqah (reliable)
Ibn Hajar al-'Asqalani: Saduq (truthful), he became confused in his later years
al-Dhahabi: Saduq (truthful)
Sufyan ibn 'Uyaynah: He denied his seeing of Amr ibn Harith and accused him of lying about it
Abd al-Latif ibn Ibrahim ibn al-Kayyal al-Shafi'i: Tabi'i (follower of the Companions)
Uthman ibn Abi Shaybah al-'Absi: Saduq (truthful) Thiqah (reliable), but he became senile and his Hadith became confused
Muhammad ibn Sa'd Katb al-Waqidi: Thiqah (reliable), and once: He was afflicted with hemiplegia before his death, so he became weak, changed, and became confused
Muhammad ibn 'Umar al-Mawsili: There is no problem with him, but he was not a Hadith scholar
Muslim ibn al-Qasim al-Andalusi: He considered him reliable and said: Whoever heard from him before the change, his narration is Sahih (authentic)
Yahya ibn Ma'in: There is no problem with him, Saduq (truthful), and in the narration of Ibn Mahriz: His Hadiths are Mursal (narrated without a complete chain) from Abdullah ibn al-Harith, and the correct one is, Khalaf ibn Khalifa from Humayd al-'A'raj from Abdullah ibn al-Harith