Ibn Sa‘d, at-Tabaqat-ul-kubra, Publish: Maqtabah al-Khanje, al-Qahira
Imam Ibn Sa’ad said: “Malik ad-Dar was a slave freed by ‘Umar bin al-Khattab. He reported traditions from Abu Bakr as-Siddiq and ‘Umar, and Abu Salih Samman reported traditions from him. He was known.” [Ibn Sa‘d, at-Tabaqat-ul-kubra Volume 006, Page No. 12, Narrator Number. 1423]