‏السلام : Hadeeth No:5400 'Uqba b. Amir reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Beware of getting, into the houses and meeting women (in seclusion). A person from the Ansir said: Allaah's Messenger, what about husband's brother, whereupon he said: Husband's brother is like death....

‏الفضائل : Hadeeth No:5786 Abu Juhaifa reported: I saw Allaah's Messenger (sallAllaahu alayhi wa sallam) that he had white complexion and had some white hair, and Hasan b. 'Ali resembled him....