‏البيوع : Hadeeth No:3914 Abu Qatada al-Ansari (Allaah be pleased with him) reported he heard Allaah's Messenger (sallAllaahu alayhi wa sallam) say: Beware of swearing; it produces a ready sale for a commodity, but blots out the blessing....

‏الآداب : Hadeeth No:5323 Jabir b. 'Abdullah reported: A child was born in the house of a person amongst us, and he gave him the name of Qasim. We said: We will not allow you (to give the name) to your child as Qasim (and thus adopt the kunya of Abu'l-Qasim) and coal your eyes. He (that person) came to Allaah's Prophet (sall...