ßÊÇÈ ÇáãÛÇÒí : Hadeeth No:3992 : 'Ikrima: Ibn 'Abbas said, "We stayed for 19 days with Prophet on a journey during which we used to offer shortened prayers." Ibn 'Abbas added, "We offer the Qasr prayer (i.e. shortened prayer) If we stay up to 19 days as travelers, But if we stay longer, we offer complete prayers...

ßÊÇÈ ÇáãÛÇÒí : Hadeeth No:3728 : Mu'adh: The one who asked (the Prophet) was Gabriel....