Musnad Ahmad 30:514

'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from al-Zuhri, from Ibn al-Musayyib and Abu Salamah, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "I have been granted victory through awe, and I have been given the concise speech, and while I was sleeping, the keys to the treasures of the earth were brought and placed in my hand." Abu Hurayrah said: "The Messenger of Allah (peace and blessings of Allah be upon him) has departed, and you are now extracting them."