Umm Sulaim Al Rumaisa said “The Prophet(ﷺ) slept and awoke while she was washing her head.” He awoke laughing. She asked “Apostle of Allaah(ﷺ) are you laughing at my head?” He replied, No. She then narrated the rest of the tradition enlarging and reducing.
Abu Dawud said:
Al-Rumaisa was the foster sister of Umm Sulaim.