‏الجنة وصفة نعيمها وأهلها‏ : Hadeeth No:6808 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: There would enter Paradise people whose hearts would be like those of the hearts of birds....

‏الصيام : Hadeeth No:2489 This hadith has been narrated on the authority of Hisham with the same chain of transmitters....