‏الطهارة : Hadeeth No:519 Anas b. Malik reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) went to a far-off place in the desert (hidden from the sight of human beings) for relieving himself. Then I brought water for him and he cleansed himself....

‏الزكاة : Hadeeth No:2150 Ibn 'Umar said that the Messenger of Allaah (sallAllaahu alayhi wa sallam) prescribed Zakat-ul-Fitr one sa' of dates or one sa' of barley for every slave or freeman, young or old....