"The Prophet, married me in Shawwal, and he consummated the marriage with me in Shawwal, and which of his wives was more favored to him than I." 'Airhuh used to like marriage to be consummated with her female relatives in Shawwal.  

تَزَوَّجَنِي النَّبِيُّ ﷺ فِي شَوَّالٍ وَبَنَى بِي فِي شَوَّالٍ فَأَىُّ نِسَائِهِ كَانَ أَحْظَى عِنْدَهُ مِنِّي وَكَانَتْ عَائِشَةُ تَسْتَحِبُّ أَنْ تُدْخِلَ نِسَاءَهَا فِي شَوَّالٍ  

the Prophet married Umm Salamah in Shawwal, and consummated the marriage with her in Shawwal.  

أَنَّ النَّبِيَّ ﷺ تَزَوَّجَ أُمَّ سَلَمَةَ فِي شَوَّالٍ وَجَمَعَهَا إِلَيْهِ فِي شَوَّالٍ