Yahya related to me from Malik from Ibn Shihab from Urwaibn az-Zubayr from A'isha, umm al-muminin, that she tookHafsa ibn Abd ar-Rahman ibn Abi Bakr as-Siddiq into herhouse when she had entered the third period of her idda.Ibn Shihab said, "That was mentioned to Amra bint Abdar-Rahman, and she said that Urwa had spoken the truthand people had argued with A'isha about it. They saidthat Allah, the Blessed, the Exalted, said in His Book,'Three quru.' A'isha said, 'You spoke the truth. Do youknow what quru are? Quru are times of becoming pure aftermenstruation .' "