Abu Huraira reported:
The Messenger of Allah (ﷺ) said: I have been helped by terror (in the heart of the enemy) ; I have been given words which are concise but comprehensive in meaning; and while I was asleep I was brought the keys of the treasures of the earth which were placed in my hand. (AR)
Reference (AR): Sahih Muslim 523 e (AR)
In-book reference (AR): Book 5, Hadith 11 (AR)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1066 (AR)