"We complained to the Messenger of Allah(s.a.w) of hunger and we raised(our garments ) from our stomachs (exposing) a stone (on each of us). So the Messenger of Allah(s.a.w) raised (his garment exposing) two stones."
Jami` at-Tirmidhi Book 36, Hadith 68
← Previous Hadith the Messenger of Allah(s.a.w) went out one day accompained by Abu Bakr and 'Umar. And he mentioned similar to Hadith( no 2369) in meaning, but he did not mention "from Abu Hurairah" in it.

Jami` at-Tirmidhi Book 36, Hadith 67 Next Hadith → "I heard An-Nu'man bin Bashir saying: 'Do you (people) not have what you wish of food and drink?' I have seen your Prophet and he did not have even enough daqal (dry dates) to fill his stomach.'"

Jami` at-Tirmidhi Book 36, Hadith 69