It was narrated from "Aishah that the Messenger of Allah P.B.U.H became angry with Safiyyah bint Huyai for something, and Safiyyah said: "0 "Aish ah, can you make the Messenger of Allah P.B.U.H be pleased with me, and I will give you my day?" She said: "Yes." So she took a headeaver of hers that was dyed with saffron, and sprinkled it with water so that its fragrance would become stronger, then she sat beside the Messenger of Allah P.B.U.H. The Prophet P.B.U.H said: "0 'Aishah, go away, because it is not your day." She said: "That is the Grace of Allah which He bestows on whom He pleases." Then she told him about that matter and he was pleased with her. (Sahih)