[Machine] The Messenger of Allah ﷺ used to say: "The voluntary fasting person is the master of his own self. He may fast if he wishes or break the fast if he wishes."
رَسُولَ اللهِ ﷺ كَانَ يَقُولُ الصَّائِمُ الْمُتَطَوِّعُ أَمِيرُ نَفْسِهِ إِنْ شَاءَ صَامَ وَإِنْ شَاءَ أَفْطَرَ