Sahih Bukhari Volume 9, Book 87, Hadith Number 141.

Narrated By Abu Huraira : I heard Allah’s Apostle saying, “I have been sent with Jawami al-Kalim (i.e., the shortest expression carrying the widest meanings), and I was made victorious with awe (caste into the hearts of the enemy), and while I was sleeping, the keys of the treasures of the earth were brought to me and were put in my hand.” Muhammad said, Jawami’-al-Kalim means that Allah expresses in one or two statements or thereabouts the numerous matters that used to be written in the books revealed before (the coming of) the Prophet.