Abu Ahmad ibn Adi al-Jurjani: There is nothing wrong with him
Abu Ja'far al-'Uqayli: Unknown in narration, his hadith is not followed
Ibn Hajar al-'Asqalani: Saduq, he makes mistakes
Muhammad ibn Muslim ibn Wahra: Not that great
Authors of Tahrir Taqrib al-Tahdhib: Saduq Hasan al-Hadith, and we do not know where he got the phrase 'he makes mistakes', a large group of trustworthy narrators narrated from him, including Abu Zar'ah al-Razi, and Ibn Marah himself