‏الأيمان : Hadeeth No:4057 'Adi b. Hatim reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: He who took an oath, but he found something else better than that, should do that which is better and break his oath....

‏الحج : Hadeeth No:2779 'Umra reported: I heard A'isha (Allaah be pleased with her) as saying: We went out with the Messenger of Allaah (sallAllaahu alayhi wa sallam) five days before the end of Dhi Qa'dah, and we did see but that he intended to perform Hajj (only), but as we came near Mecca the Messenger of Allaah (sallAl...