It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: I have been sent with concise and comprehensive speech, I have been helped with awe (cast into the hearts of enemies), and once while I was sleeping, the keys to all the treasures of the earth were brought to me and placed in my hand.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9867