It was narrated that Ibn ‘Abbas said: “The Messenger of Allah صلی اللہ علیہ وآلہ وسلم traveled and fasted until he reached ‘Usfan, then he called for a cup and drank during the day when the people could see him. Then he fast until he reached and he conquered Makkah during Ramadhan.'' Ibn ‘Abbas said: “And the Messenger of Allah صلی اللہ علیہ وآلہ وسلم fasted and broke his fast while traveling, so whoever wishes may fast, and whoever wishes may not fast.” (Sahih)