Abu Bakr ibn Ayash: I have not seen anyone more knowledgeable in jurisprudence than Mughirah
Abu Hatim al-Razi: Trustworthy
Abu Hatim ibn Hibban al-Busti: He was a Mudallis
Abu Dawud al-Sijistani: Mughirah does not practice Tadlis about Ibrahim, for he heard one hundred and eighty Hadiths from him
Ahmad ibn Hanbal: He weakened the Hadith of Mughirah from Ibrahim al-Nakha'i, and said: He used to practice Tadlis, but he heard it from Hammad
Ahmad ibn Shuayb al-Nasa'i: Trustworthy, and once: He described him as practicing Tadlis
Ahmad ibn Salih al-Jili: Trustworthy, knowledgeable in Hadith, except that he used to narrate Hadiths from Ibrahim without mentioning his Sheikh, and when he stopped, he would tell them from whom he heard it, and he was one of the jurists of the companions of Ibrahim
Ismail ibn Ishaq al-Qadi: He is not strong because he practices Tadlis
Ibn Hajar al-Asqalani: Trustworthy and precise, except that he used to practice Tadlis, especially from Ibrahim, and he once said: One of the Imams agreed upon his trustworthiness and the Imams relied on him, and he mentioned him in the classes of Mudallis and said: Trustworthy and famous
Shubah ibn al-Hajjaj: Mughirah has a better memory than Hammad ibn Abi Sulayman
Muhammad ibn Ismail al-Bukhari: He narrated from him in Al-Adab al-Mufrad and quoted al-Tirmidhi's saying about him: His Hadith is Hasan
Muhammad ibn Sa'd, the scribe of al-Waqidi: Trustworthy, narrated many Hadiths
Muhammad ibn Fadil al-Dabbi: He used to practice Tadlis, so he would not write except what he said, 'Ibrahim narrated to us'
Authors of Tahrir Taqrib al-Tahdhib: Trustworthy and precise, and his saying: 'except that he used to practice Tadlis, especially from Ibrahim', needs further consideration, as al-Bukhari and Muslim narrated from his narration from Ibrahim, without explicitly mentioning hearing
Yahya ibn Ma'in: Trustworthy, reliable