‏الصلاة : Hadeeth No:1511 Salim b. 'Abdullah reported that his father had said: I saw the Messenger of Allaah (sallAllaahu alayhi wa sallam) delaying the sunset prayer till he would combine it with the 'Isha' when he hastened to set out on a journey....

‏الصلاة : Hadeeth No:1518 Mu'adh reported: We set out with the Messenger of Allaah (sallAllaahu alayhi wa sallam) on the Tabuk expedition, and he observed the noon and afternoon prayers together and the sunset and 'Isha' prayers together....