‏السلام : Hadeeth No:5380 Anas b. Malik reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When the People of the Book offer you salutations, you should say: The same to you....

‏البيوع : Hadeeth No:3882 Nu'man b. Bashir (Allaah be pleased with him) reported: I heard Allaah's Messenger (sallAllaahu alayhi wa sallamn) as having said this (and Nu'man) pointed towards his ears with his fingers): What is lawful is evident and what is unlawful is evident, and in between them are the things doubtful which...