وَعَنْ عَائِشَةَ رَضِيَ اَللَّهُ عَنْهَا
قَالَتْ: «كَانَ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَصُومُ حَتَّى نَقُولَ لَا يُفْطِرُ، وَيُفْطِرُ حَتَّى نَقُولَ لَا يَصُومُ، وَمَا رَأَيْتُ رَسُولَ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ اِسْتَكْمَلَ صِيَامَ شَهْرٍ قَطُّ إِلَّا رَمَضَانَ، وَمَا رَأَيْتُهُ فِي شَهْرٍ أَكْثَرَ مِنْهُ صِيَامًا فِي شَعْبَانَ»
Aishah (RAA) narrated, ‘The Messenger of Allah (sallallahu alayhi wa sallam) used to fast until one would say, he never breaks his fast (i.e. he never stops fasting), and he would abandon fasting (at other times) until one would say that he never fasts. And I never saw the Messenger of Allah (sallallahu alayhi wa sallam) fast for a complete month except for the month of Ramadan, and I never saw him fast in a month more than he did in the month of Shaban.’ Agreed upon and the wording is from Muslim.