‏الطهارة : Hadeeth No:549 Abu Huraira reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: The purification of the utensil belonging to any one of you, after it is licked by a dog, lies in washing it seven times, using sand for the first time....

‏الزهد والرقائق‏ : Hadeeth No:7102 'Abd al-Rahman al-Hubuli reported: I heard that a person asked 'Abdullah b. 'Amr b. 'Asas saying: Are we not amongst the destitute of the emigrants? Abdullah said to him: Have you a spouse with whom you live? He said: Yes. He again said: Then you are amongst the rich. He said: I have a servant also....