Musnad Ahmad 28:590

Qutaybah ibn Sa'id narrated to us, Bakr ibn Mudar narrated to us, from Ibn al-Had, from 'Amr ibn Shu'ayb, from his father, from his grandfather, that the Messenger of Allah (ﷺ), in the year of the Battle of Tabuk, stood up at night to pray. A group of his companions gathered behind him to guard him. When he finished praying and turned to them, he said to them: "I have been given five things tonight that no one before me was given: As for me, I have been sent to all people in general, whereas those before me were only sent to their own people. I have been granted victory over the enemy through fear, and even if there were a month's journey between me and them, they would be filled with fear. The spoils of war have been made lawful for me to consume, whereas those before me considered consuming them a grave matter; they used to burn them. The earth has been made a place of prostration and a means of purification for me; wherever prayer overtakes me, I perform tayammum and pray, whereas those before me considered that a grave matter; they only used to pray in their churches and synagogues. And the fifth is what it is: It was said to me, 'Ask, for every prophet has asked.' So I delayed my request until the Day of Resurrection, and it is for you and for whoever testifies that there is no god but Allah."