Nu'maan ibn Bashir Radiyallahu 'Anhu says:
"Are you not in the luxuries of eating and drinking, whereas, I had observed that Rasulullah Sallallahu 'Alayhi Wasallam did not possess ordinary types of dates to fill his stomach". (DE)
English reference (DE): Book 50, Hadith 351 (DE)
Arabic reference (DE): Book 52, Hadith 369 (DE)