Abu Huraira reported:
The Messenger of Allah (ﷺ) said: I have been commissioned with words which are concise but comprehensive in meaning; I have been helped by terror (in the hearts of enemies): and while I was asleep I was brought the keys of the treasures of the earth which were placed in my hand. And Abfi Huraira added: The Messenger of Allah (ﷺ) has left (for his heavenly home) and you are now busy in getting them. (ID)
Reference (ID): Sahih Muslim 523 b (ID)
In-book reference (ID): Book 5, Hadith 8 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1063 (ID)