Mishkat al-Masabih 5912 — Excellent Qualities and Description of the Prophet

Abu Huraira said: On the day of the expedition of Tabuk the people were afflicted by hunger, and `Umar said, "Messenger of God, tell them to bring what is left over of their provisions and pray God for a blessing for them on them." He agreed, then called for a leather cloth and it was spread out. He then called for the provisions which were left, and one brought a handful of millet, another a handful of dates, another crumbs until a small quantity was collected on the leather cloth. God's messenger then prayed for a blessing, after which he said, "Take a supply in your receptacles." They did so until they did not leave a receptacle in the army which they did not fill. They then ate till they were satisfied, and there was something over. God's messenger then said, "I testify that there is no god but God and that I am God's messenger. No one who meets God and affirms the two testimonies without harbouring any doubts will not be kept away from paradise." Muslim transmitted it.