It was narrated from Hammam bin Al-Harith that 'Aishah said:
"I remember when I could do no more than rub it form the garment of the Messenger of Allah (ﷺ)." (IT)
English reference (IT): Vol. 1, Book 1, Hadith 298 (IT)
Arabic reference (IT): Book 1, Hadith 299 (IT)