Ahmad ibn Salih al-Jalil: Trustworthy and he was a righteous man who did not participate in any of the turmoil.
Ibn Hajar al-Asqalani: Trustworthy jurist, famous.
Ibn Shihab al-Zuhri: An ocean undisturbed by buckets, and I have not seen anyone with more Hadiths than Ubaydullah ibn Abdullah.
Muhammad ibn Sa'd Kathir al-Waqidi: Trustworthy, knowledgeable in Hadith, a jurist, scholar, reliable, and trustworthy.