"I asked 'Aishah about the fasting of the Messenger of Allah. She said: "The Messenger of Allah used to fast until we said: He is going to (continue to) fast, and he used not to fast until we said: He is not going to, and he did not fast for a whole month from the time he came to Al-Madinah, apart from Ramadan."' (Using translation from Nasāʾī 2349)
عَنْ صِيَامِ النَّبِيِّ ﷺ قَالَتْ «كَانَ يَصُومُ حَتَّى نَقُولَ قَدْ صَامَ وَيُفْطِرُ حَتَّى نَقُولَ قَدْ أَفْطَرَ وَمَا صَامَ رَسُولُ اللهِ ﷺ شَهْرًا كَامِلًا مُنْذُ قَدِمَ الْمَدِينَةَ إِلَّا رَمَضَانَ»