‏الطهارة : Hadeeth No:541 Abu Huraira said: When anyone amongst you wakes up from sleep, he must not put his hand in the utensil till he has washed it three times, for he does not know where his hand was during the night....

‏الإمارة : Hadeeth No:4516 Adi b. 'Amira al-Kindi heard Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying (as) was narrated in the (above-mentioned) hadith....