Narrated Abu Al-'Ala:
from Samurah bin Jundab that he said: "We were with the Prophet (ﷺ) and we would take turns (eating) from a bowl from the morning till the evening. Ten would stand and ten would sit." We said: "So what was filling it up?' He said: "What are you amazed at? It wasn't filled up from anywhere but here, and he pointed with his hand towards the sky." (IT)
English reference (IT): Vol. 1, Book 46, Hadith 3625 (IT)
Arabic reference (IT): Book 49, Hadith 3985 (IT)