It wasnarrated that Ibn 'Abbas said:
"The Messenger of Allah (ﷺ)usedto spend many nights in a row hungry and his family could find nosupper, and usually their bread was barley bread." (ID)
English reference (ID): Vol. 4, Book 29, Hadith 3347 (ID)
Arabic reference (ID): Book 29, Hadith 3472 (ID)