Samura bin Jundab reported,

We were with the Messenger of Allah ﷺ, taking turns eating from a single bowl from morning until night. Ten would stand up and ten would sit down to eat.We asked, "From what was it being replenished?"He replied, "What are you amazed at? It was being replenished only from here," and he pointed with his hand toward the sky.

Azami 9691

Sahih

عن سمرة بن جندب قال

كنا مع رسول الله ﷺ نتداول في قصعة عن عدوة حتى الليل، يقوم عشرة، ويقعد عشرة، قلنا: فما كانت تمد؟ قال: من أي شيء تعجب؟ ما كانت تمد إلا من هاهنا. وأشار بيده إلى السماء.

الأعظمي 9691صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Biography of the Prophet ﷺ
Chapter
Miracles of the Prophet ﷺ and proofs of his prophethood
Section
Multiplying the food
Numbering
Jami al-Kamil 9691 (2nd edition)
Azami 9691