‏النكاح : Hadeeth No:3409 Ibn Abbas (Allaah be pleased with them) reported: It was proposed that he (the Prophet) be married to the daughter of Hamza, whereupon he said: She is not lawful for me for she is the daughter of my foster-brother, and that is unlawful by reason of fosterage what is unlawful by reason of genealogy....

‏الأشربة : Hadeeth No:5055 Abu Huraira reported that Allaah's Messenger (sallAllaahu alayhi wa sallam) went out (of his house) one day or one night, and there he found Abu Bakr and 'Umar also. He said: What has brought you out of your houses at this hour? They said: Allaah's Messenger, it is hunger. Thereupon he said: By Him ...