Sunan an-Nasa'i 2352
سنن النسائي#2352Sahihأَخْبَرَنَا مَحْمُودُ بْنُ غَيْلاَنَ، قَالَ حَدَّثَنَا أَبُو دَاوُدَ، قَالَ أَنْبَأَنَا شُعْبَةُ، عَنْ مَنْصُورٍ، قَالَ سَمِعْتُ سَالِمَ بْنَ أَبِي الْجَعْدِ، عَنْ أَبِي سَلَمَةَ، عَنْ أُمِّ سَلَمَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ لاَ يَصُومُ شَهْرَيْنِ مُتَتَابِعَيْنِ إِلاَّ شَعْبَانَ وَرَمَضَانَ .
It was narrated from Umm Salamah:That the Messenger of Allah would not fast any two consecutive months except Shaban and Ramadan
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiHasan
In-book reference: 22:263