‏الأضاحي : Hadeeth No:4863 Thauban reported that Allaah's Messenger (way sallAllaahu alayhi wa sallam) slaughtered his sacrificial animal and then said: Thauban, make his meat usable (for journey), and I continuously served him that until he arrived in Medina....

‏الصلاة : Hadeeth No:1596 'A'isha reported: When the Messenger of Allaah (sallAllaahu alayhi wa sallam) grew bulky and heavy he would observe (most of his Nafl) prayers sitting....