It was narrated from 'Abdul-Malik bin Harith bin Hisham, from his father, that:
the Prophet married Umm Salamah in Shawwal, and consummated the marriage with her in Shawwal. (ES)
English reference (ES): Vol. 3, Book 9, Hadith 1991 (ES)
Arabic reference (ES): Book 9, Hadith 2068 (ES)