‏الحيض : Hadeeth No:726 Ibn 'Abbas reported: We were with the Prophet of Allaah (sallAllaahu alayhi wa sallam) and he had come out of the privy. Food was presented to him. It was said to him (by the Companions around him): Wouldn't you perform ablution? Upon this he said: Why, am I to say prayer that I should perform ablut...

‏الصيام : Hadeeth No:2400 Abdullah b. 'Umar (Allaah be pleased with both of them) reported: I heard the Messenger of Allaah (sallAllaahu alayhi wa sallam) as saying: Bilal announces Adhan during the night, so you eat and drink, till you hear the Adhan of Ibn Umm Maktum....