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)." (ES)
English reference (ES): Vol. 1, Book 1, Hadith 298 (ES)
Arabic reference (ES): Book 1, Hadith 299 (ES)