الأيمان : Hadeeth No:4058
'Adi reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: When anyone amongst you takes an oath, but he finds (something) better than that he should expiate (the breaking of the oath), and do that which is better....
الصلاة : Hadeeth No:851
This hadith is narrated on the authority of Abu Huraira by another chain of transmitters....