It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that when Abu Talhah (may Allah be pleased with him) saw the Messenger of Allah (peace and blessings be upon him) in a state of hunger, he came to Umm Sulaym (may Allah be pleased with her) and said: "I have seen the Messenger of Allah (peace and blessings be upon him) in a state of hunger; do you have anything?" She said: "We have about two mudd of barley flour." He said: "Knead it and cook it; perhaps we can invite the Prophet (peace and blessings be upon him) so that he may eat from it." So she kneaded it and baked it, and it made one loaf. Then he said to me: "Invite the Messenger of Allah (peace and blessings be upon him)." I came to the Prophet (peace and blessings be upon him), and there were some people with him (peace and blessings be upon him); I think the narrator said: "Eighty and some." I said: "O Messenger of Allah! Abu Talhah is inviting you." He (peace and blessings be upon him) said to his companions: "Accept Abu Talhah's invitation." I hurried back and told him that he and his companions were coming. He said: "By Allah! The Messenger of Allah (peace and blessings be upon him) knows better than I do what is in my house." Abu Talhah went forward to receive him and said: "By Allah! We have only one loaf. I saw you in a state of hunger, so I told Umm Sulaym to make a loaf for you." He (peace and blessings be upon him) called for the loaf and called for a large bowl, placed the loaf in it and asked: "Is there any ghee?" Abu Talhah said: "There is something in the skin." So he brought it, and the Prophet (peace and blessings be upon him) and Abu Talhah began squeezing it until something came out of it; the Prophet (peace and blessings be upon him) took it up with his index finger, then rubbed it on the loaf, then said: "Bismillah (In the name of Allah)." The loaf swelled up. He (peace and blessings be upon him) kept doing this, and the loaf kept swelling, until I saw the loaf spread out and soften in the bowl. Then he (peace and blessings be upon him) said: "Call ten of my companions for me." I called ten, and the Prophet (peace and blessings be upon him) set down the loaf and said: "Eat, saying Bismillah." So they ate from around the loaf until they were full. He (peace and blessings be upon him) kept calling them ten at a time, and they kept eating from that loaf, until eighty and some men had eaten from around that loaf and were full. The narrator said: And the part of the loaf where the Messenger of Allah (peace and blessings be upon him) had placed his hand remained just as it was.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21742