Abu Hatim ibn Hibban Al-Busti: One of the pious hafiz, among the people of piety in religion, from those who memorized, collected, studied jurisprudence, narrated, and showed the Sunnah in his country, called people to it, defended its sanctity, and suppressed those who opposed it.
Abu Hamid Al-Isfarayeni: One of the Imams of Hadith
Abu Abdillah Al-Hakim An-Naysaburi: One of the prominent hafiz of Hadith
Ahmad ibn Hanbal: Trustworthy, praised him well, and once said: 'He was offered the world but he did not accept it'
Ishaq ibn Ibrahim Al-Warraq: As long as he is among you, do not occupy yourselves with anyone else
Ibn Abi Hatim Ar-Razi: Imam of the people of his time, and once said: 'Trustworthy, truthful'
Ibn Hajar Al-Asqalani: Trustworthy, excellent, pious, hafiz
Al-Khatib Al-Baghdadi: One of the travelers in pursuit of Hadith, and those known for memorizing and collecting it, and his piety for it, along with trustworthiness and truthfulness
Adh-Dhahabi: Trustworthy, famous
Adh-Dhahabi: The hafiz, scholar of Samarqand
Rajaa ibn Murji Al-Ghifari: I do not know of anyone more knowledgeable of the Hadith of the Prophet, peace and blessings be upon him, than him
Abdul-Hayy ibn al-Imad Al-Hanbali: Trustworthy, hafiz
Abdur-Rahman ibn Muhammad As-Samarqandi: Imam of the people of his time
Abdullah ibn Sa'id Al-Ashj: Our Imam
Muhammad ibn Ibrahim ibn Mansur Ash-Shirazi: He spread the knowledge of Hadith and narrations in Samarqand and defended it from falsehood
Muhammad ibn Bashshar Bundar: One of the hafiz of the world
Muhammad ibn Abdullah Al-Mukharrimi: O people of Khurasan, as long as Abdullah ibn Abdur-Rahman is among you, do not occupy yourselves with anyone else
Muhammad ibn Abdullah ibn Numayr: He overwhelmed us with memorization and piety