Sayyiduna Hamzah bin Amr Aslami رضي الله عنه reports that I asked, "O Messenger of Allah, I have the strength to fast while traveling, so will there be any sin on me (if I fast)?" The Messenger of Allah صلى الله عليه وسلم said: "It is a concession from Allah, so whoever benefits from this concession, it is good. And whoever prefers to fast, there is no sin upon him." In the narration of Sayyiduna Jabir رضي الله عنه, it is mentioned that the Noble Prophet صلى الله عليه وسلم said: "Accept the concession given by Allah, accept the concession that Allah has granted you."