Sahih al-Bukhari 2484

Bishr ibn Marhum narrated to us: Hatim ibn Isma'il narrated to us, from Yazid ibn Abi Ubayd, from Salama (may Allah be pleased with him), who said: The people’s provisions dwindled and they were in straitened circumstances. They came to the Prophet (peace and blessings be upon him) seeking permission to slaughter their camels, and he gave them permission. Umar met them, and they told him. He said, ‘What will sustain you after your camels are gone?’ He went to the Prophet and said, ‘Messenger of Allah, what will sustain them after their camels are gone?’ The Messenger of Allah said, ‘Call out to the people to bring whatever surplus provisions they have.’ A leather mat was spread for this, and they placed the food on it. The Messenger of Allah stood, supplicated, and blessed it. Then he called them to bring their containers, and the people took handfuls until they had finished. Then the Messenger of Allah said: ‘I bear witness that there is no god but Allah, and that I am the Messenger of Allah.’