Abu Hatim Al-Razi: Trustworthy Imam
Abu Hatim bin Hibban Al-Busti: Among the most pious people of his time
Ahmad ibn Hanbal: The ultimate authority in trustworthiness in Basra, and once said: How knowledgeable he is, and how much he memorizes, truthful, pious
Ahmad ibn Shu'ayb An-Nasa'i: Trustworthy
Ibn Hajar Al-'Asqalani: Trustworthy, Firm
Adh-Dhahabi: The Haafidh (scholar who memorized a vast amount of Hadith)
Bishr ibn Al-Harith Al-Hafi: Precise, memorizer. I don't know if I've seen anyone like him, and like the soundness of his Hadith
Abd Ar-Rahman ibn Mahdi: There is no one among our companions who wrote Hadith from me, memorized it, and reviewed it with me like Yahya bin Sa'id, Sufyan bin 'Uyainah, and Yazid bin Zurai
Uthman bin Muslim As-Saffar: The most trustworthy of people
Amr ibn Ali Al-Fallas: Among the most trustworthy of people
Muhammad ibn Sa'd Kathir Al-Waqidi: Trustworthy, Haajjih (one who has performed Hajj), abundant in Hadith
Yahya bin Sa'id Al-Qattan: There was no one here more trustworthy than him
Yahya bin Ma'in: Trustworthy, and once: Truthful, trustworthy, reliable, and in a narration of Ibn Mahriz from him, he said: The most trustworthy of people in (the narrations of) Sa'id ibn Abi 'Arubah, and he counted him among the trustworthy of Basra