'Aayeshah Radiyallahu 'Anha says:
"Rasulullah Sallallahu 'Alayhi Wasallam never filled his stomach with bread made of barley for two consecutive days till he passed away". (ES)
English reference (ES): Book 24, Hadith 141 (ES)
Arabic reference (ES): Book 25, Hadith 149 (ES)