She was asked about sexual impurity, and she said, "I used to scrape the traces of sexual impurity off the garment of the Messenger of Allah ﷺ."
حدثنا يونس حدثنا حماد يعني ابن زيد عن أبي هاشم صاحب الرمان عن أبي مجلز عن الحارث بن نوفل
أنها سئلت عن الجنابة قالت كنت أفرك الجنابة من ثوب رسول الله ﷺ
Its isnad is sahih. Its narrators are trustworthy, and their narrations are found in the collections of the Group. Abu Hashim Rumani is a person whose name is disputed but who is well known by this kunya, Abu Majliz is Lahiq bin Humayd, and Harith bin Nawfal is a well known companion. The hadith has already appeared at 23946.