Name: Ahmad ibn Zuhayr ibn Harb ibn Shaddad

Fame: Ahmad ibn Abi Khaythamah al-Nasa'i

Kuniya: Abu Bakr

Lineage: al-Tastari, al-Harshi, al-Nasa'i

Rank: Trustworthy Hafiz

Lived in: Tastar

Ibn Abi Hatim al-Razi: Truthful

Al-Khatib al-Baghdadi: Trustworthy, scholar, jurist, Hafiz, insightful about people's affairs

Al-Daraqutni: Trustworthy, reliable, and in the questions of Abu Abd al-Rahman al-Sulami: Trustworthy

Al-Dhahabi: The Hafiz, the Proof, one of the flags (leading scholars)

Hajjaj ibn Arkin al-Farghani: He had knowledge of people's affairs and their news