It is narrated from Sayyidah Umm Ayyash (may Allah be pleased with her), and she was a servant of the Prophet (peace and blessings be upon him); he (peace and blessings be upon him) sent her with his daughter to Sayyiduna Uthman bin Affan (may Allah be pleased with him).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21695