Narrated Anas (RA): When Allah's Messenger ( صلی اللہ علیہ وسلم ) went out on a journey of three miles or three Farasikh, he ( صلی اللہ علیہ وسلم ) used to pray two Rak'at. [Reported by Muslim] . Farasikh (plural of Farsakh) is Persian unit of distance. Farsakh is equal to about three miles.