Musannaf Ibn Abi Shaybah 29628 — Reports on the qasamah

Ma'mar said that al-Zuhri stated: Umar bin Abd al-Aziz called me and asked me about the legal ruling on qasamah (the collective oath). He said: It has become clear to me that I should reject it, because a Bedouin testifies, and a man who was absent comes and testifies. I said: O Commander of the Believers, you cannot reject it, because the Messenger of Allah (peace and blessings be upon him) and the Rightly Guided Caliphs after him ruled by it.