Sahifah Hammam ibn Munabbih

And the Messenger of Allah, peace and blessings be upon him, said: “One of the prophets from among the previous prophets prepared for battle, and he said to his people: No one should follow me who has married and desires to spend the night with his wife but has not yet been alone with her, nor should anyone follow me who has built a house but has not yet put a roof on it, nor should anyone go who has bought pregnant goats or pregnant camels and is waiting for them to give birth. Then that prophet fought in battle, and when he reached a town at the time of Asr prayer or near Asr, that prophet said to the sun: ‘You are also bound by the command of Allah, and I am also bound by the command of Allah.’ (Then he prayed to Allah:) O Allah! Hold back the sun for a while for my sake. Then the sun was held back until Allah granted them victory. Then the people gathered the spoils of war, and when they had collected them, a fire came to consume (burn) the spoils, but it refused to consume them. At this, that prophet said: Someone among you has committed treachery (with the spoils). Therefore, one man from each tribe should pledge allegiance on my hand. When the pledges began, the hand of one man clung to the hand of that prophet. So the prophet said: The man who committed treachery is among your tribe, so now your whole tribe should pledge allegiance on my hand. So they pledged allegiance, and then the hands of two or three men clung to the hand of the prophet. The prophet said: Treachery has been committed by the people of your tribe. Eventually, they brought forth gold equal to the head of a cow (which had been stolen from the spoils) and placed it among the spoils. Then the fire came and consumed that wealth. (In the end) the Messenger of Allah, peace and blessings be upon him, said: ‘The spoils of war were not lawful for those before us. But Allah, considering our weakness and humility, made this wealth lawful for us.’”