Abu Zar'ah ar-Razi: Trustworthy Imam, his hadith from his father is mursal
Ahmad ibn Salih al-Jili: Trustworthy
Ibn Hajar al-Asqalani: Trustworthy, prolific narrator
Ibn Shihab az-Zuhri: Four I found to be oceans of knowledge: Urwah, Ibn al-Musayyab, Abu Salamah, and Ubaydullah
Adh-Dhahabi: One of the great Imams
Ali ibn al-Madini: Trustworthy Imam, his hadith from his father is mursal
Muhammad ibn Sa'd, the scribe of al-Waqidi: Trustworthy Jurist, prolific narrator
Muhammad ibn Umar: Trustworthy Jurist, prolific narrator
Yahya ibn Ma'in: Trustworthy Imam, his hadith from his father is mursal