That the Prophet would not fast any month of the year in full except Shaban and he used to join it to Ramadan.
عَنِ النَّبِيِّ ﷺ أَنَّهُ لَمْ يَكُنْ يَصُومُ مِنَ السَّنَةِ شَهْرًا تَامًّا إِلاَّ شَعْبَانَ وَيَصِلُ بِهِ رَمَضَانَ
She never saw the Prophet ﷺ fasting the whole month except Sha'ban which he combined with Ramadan.
عَنِ النَّبِيِّ ﷺ أَنَّهُ لَمْ يَكُنْ يَصُومُ مِنَ السَّنَةِ شَهْرًا تَامًّا إِلاَّ شَعْبَانَ يَصِلُهُ بِرَمَضَانَ
That the Prophet would not fast any month of the year in full except Shaban and he used to join it to Ramadan. (Using translation from Nasāʾī 2353)
عَنِ النَّبِيِّ ﷺ أَنَّهُ لَمْ يَكُنْ يَصُومُ مِنَ السَّنَةِ شَهْرًا تَامًّا يُعْلَمُ إِلَّا شَعْبَانَ يَصِلُ بِهِ رَمَضَانَ
She never saw the Prophet ﷺ fasting the whole month except Sha'ban which he combined with Ramadan. (Using translation from Abū Dāʾūd 2336)
عَنِ النَّبِيِّ ﷺ أَنَّهُ «لَمْ يَكُنْ يَصُومُ مِنَ السَّنَةِ شَهْرًا تَامًّا إِلَّا شَعْبَانَ يَصِلُ بِهِ رَمَضَانَ»
She never saw the Prophet ﷺ fasting the whole month except Sha'ban which he combined with Ramadan. (Using translation from Abū Dāʾūd 2336)
النَّبِيِّ ﷺ أَنَّهُ لَمْ يَكُنْ يَصُومُ مِنَ السَّنَةِ شَهْرًا تَامًّا إِلَّا شَعْبَانَ يَصِلُهُ بِرَمَضَانَ