IBN ABU KHAYTHAMA:
Abu Bakr, Ahmad bin Abu Khaythama Zuhair bin Harb An-Nasa’I Al-Baghdadi was a celebrated Imam, Hafidh and an authority. He authored At-Tarikh Al-Kabir. Ad-Daraqutni said about him, ‘He was reliable and trustworthy.’ Al-Khatib also said, ‘He was reliable ‘Aalim (learned), accurate Hafidh, knowledgeable in the history of people, and the narration of poetry.’ He studied Hadeeth under Ahmad bin Hanbal and Ibn Ma’in. Ibn Abu Khaythama died in Jumada-ul-Ula 289 H., at the age of 94 years.