Abu Ahmad ibn Adi al-Jarjani: Closer to weakness than to truth
Abu al-Qasim al-Suhayli: Weak by consensus
Abu Bakr al-Bazzar: The people of knowledge do not use his hadith as evidence if he is alone in narrating it
Abu Bakr al-Bayhaqi: Weak, and once: Not to be used as evidence, and once: Abandoned
Abu Hatim al-Razi: Abandoned in Hadith
Abu Hatim ibn Hibban al-Busti: The calamity of al-Hasan's fabrication on the trustworthy narrators, what the weak narrators fabricated against them, he used to hear from Musa ibn Muti`, Abu al-`Atawf, Aban ibn Abi `Ayyash and their likes, then he would drop their names and narrate it on the authority of his trustworthy Shaykhs, so those fabrications stuck to him
Abu Zur`ah al-Razi: Abandoned in Hadith
Abu Mas`ud Ayyub ibn Suwayd al-Himyari: I consider him better than al-Thawri
Ahmad ibn Hanbal: Abandoned in Hadith, and once: He was a denier of Hadith, and his hadiths are fabricated, his hadith is not to be written, and once: He is nothing
Ahmad ibn Shu`ayb al-Nasa'i: Abandoned in Hadith, and once: He is not trustworthy and his hadith is not to be written
Ahmad ibn Salih al-Jili: He weakened him and stopped narrating from him
Ibrahim ibn Ya`qub al-Jawzajani: Dropped
Ibn Hajar al-`Asqalani: Abandoned in Hadith
Al-Daraqutni: Weak, and once: Abandoned
Al-Dhahabi: They weakened him
Al-Nadhri ibn Shamil: Al-Hasan ibn `Ammarah narrated seventy hadiths to me on the authority of al-Hakam, but they had no basis
Jarir ibn `Abd al-Hamid al-Dabbi: I never thought I would live to see a time when people narrate from Muhammad ibn Ishaq and remain silent about al-Hasan ibn `Ammarah
Zakariya ibn Yahya al-Saji: Weak in hadith, abandoned, all the hadith scholars agreed to abandon his hadith
Sufyan al-Thawri: He criticized him, then he was not heard mentioning him except with good
Sufyan ibn `Uyaynah: If he heard him narrating from al-Zuhri and `Amr ibn Dinara, he would put his fingers in his ears, and once: He had virtue, but others were more knowledgeable than him
Shubah ibn al-Hajjaj: Whoever wants to see the most lying of people, let him look at al-Hasan ibn Ammarah, and once: He lies, then he said: Things were narrated on the authority of al-Hakam, but we did not find any basis for them
Salih ibn Muhammad Jazrah: His hadith is not to be written
Ali ibn al-Madini: I do not need Shubah in the matter of al-Hasan ibn Ammarah, the matter is clearer than that, it was said: Was he making mistakes? He said: He was making mistakes, what kind of mistakes was he making? And he went on to say that he was fabricating hadith
Amr ibn Ali al-Fallas: A righteous man, truthful, but makes many mistakes and has much forgetfulness, abandoned in hadith
`Isa ibn Yunus al-Sabi`i: A righteous Sheikh, Shubah said about him, and Sufyan supported him against him
Muhammad ibn Sa`d, the scribe of al-Waqidi: Weak in hadith
Muhammad ibn `Abd Allah al-Makhrami: He abandoned his hadith
Muslim ibn al-Hajjaj al-Naysaburi: Abandoned in Hadith
Wakee` ibn al-Jarrah: Discard him
Yahya ibn Ma`in: His hadith is not to be written, and once: His hadith is nothing, and once: Weak
Ya`qub ibn Shabah al-Sadusi: Abandoned in Hadith