Narrated Abu Hurairah:
"I said: 'O Messenger of Allah, I heard from you things that I do not remember.' He said: 'Spread your cloak.' So I spread it, then he narrated many Ahadith, and I did not forget a thing that he reported to me.'" (AR)
English reference (AR): Vol. 1, Book 46, Hadith 3835 (AR)
Arabic reference (AR): Book 49, Hadith 4206 (AR)