Abu Hurairah (May Allah be pleased with him) or may be Abu Sa'id Al- Khudri (May Allah be pleased with him) reported: On the day of the battle of Tabuk, the Muslims were hard pressed by hunger and they asked Messenger of Allah ﷺ: "O Messenger of Allah, grant us permission to slaughter our camels to eat and use their fat". He ﷺ accorded permission. On this 'Umar (May Allah be pleased with him) came and said: "O Messenger of Allah, if it is done, we shall suffer from lack of transportation. I suggest you pool together whatever has been left and supplicate Allah to bless it". Allah will bestow His Blessing upon it. Messenger of Allah ﷺ agreed and called for leather mat and had it spread out, and asked people to bring the provisions left over. They started doing it. One brought a handful of corn, another brought a handful of dates, a third brought a piece of bread; thus some provisions were collected on the mat. Messenger of Allah ﷺ invoked blessings, and then said, "Now take it up in your vessels". Everyone filled his vessel with food, so that there was not left a single empty vessel in the whole camp. All of them ate to their fill and there was still some left over. Messenger of Allah ﷺ said, "Any slave who meets Allah, testifying there is no true god except Allah, and that I am His Messenger, without entertaining any doubt about these (two fundamentals), will not be banished from entering Jannah". Muslim.