Abu Hatim ibn Hibban al-Busti: Pious, preserver of the religion, one of those who wrote, collected, compiled and studied, and he was the most knowledgeable of his time in categorizing
Abu Hafs Umar ibn Shaheen: Truthful
Abu Zar'ah al-Razi: I have not seen anyone more knowledgeable than him
Ahmad ibn Humayd al-Jumahi: Most knowledgeable of the people of Kufa
Ahmad ibn Hanbal: Truthful and he is dearer to me than Uthman
Ahmad ibn Shu'ayb al-Nasa'i: Trustworthy
Ahmad ibn Salih al-Jili: Kufi, trustworthy and was a Hadith scholar
Ibn Abi Hatim al-Razi: Kufi, trustworthy, narrated from Sharik, Abu al-Ahwas, 'Abbad and Hushaym
Ibn Hajar al-'Asqalani: Trustworthy Hadith Scholar, Author
Al-Khatib al-Baghdadi: He was pious, knowledgeable, compiled extensively, authored Musnad, Ahkam and Tafsir
Al-Dhahabi: Master of Hadith scholars, the ultimate authority in trustworthiness
Al-Qasim ibn Sallam al-Harawi: The masters of Hadith are four, and he mentioned him among them, and once: Hadith has reached its peak with four: Abu Bakr ibn Abi Shaybah, Ahmad ibn Hanbal, Yahya ibn Ma'in, and Ali ibn al-Madini. Abu Bakr was the most eloquent of them and the best in compiling books, Ahmad was the most insightful in it, Yahya was the most comprehensive, and Ali was the most knowledgeable of it
Ja'far ibn Muhammad al-Firyabi: I asked Muhammad ibn Numayr about the sons of Abi Shaybah, so he said something about them that I did not like to mention
Salih ibn Muhammad Jazrah: The most knowledgeable person we have met in discussions
Abd al-Baqi ibn Qani' al-Baghdadi: Trustworthy, Upright
Abd al-Rahman ibn Yusuf ibn Kharash: Trustworthy
Abdan ibn Ahmad al-Ahwazi: He used to sit at the pillar often, all of them were silent except Abu Bakr, for he would speak a lot
Amr ibn Ali al-Fallas: I have not seen anyone more knowledgeable than him
Qubaybah ibn Sa'id: I wrote everything from him
Yahya ibn Abd al-Hamid al-Himmani: The sons of Ibn Abi Shaybah were from the people of knowledge, they used to compete with us with every Hadith scholar
Yahya ibn Ma'in: Kufa is desolate except for the two sons of Abi Shaybah: Abu Bakr and Uthman, and once: Abu Bakr, in our view, is truthful, and if he claimed to have heard from someone greater than Sharik, he would be believed
Ya'qub ibn Shaybah al-Sadusi: There was leniency in Hadith narration in him, he did not differentiate between these things, meaning the wording