Musnad Ahmad 1034:12

Abu Mu'awiyah narrated to us, Abu Malik al-Ashja'i narrated to us, from Rib'i ibn Hirash, from Hudhayfah, who said: "This nation was favored over all other nations with three things: the earth was made for it a purifier and a place of prayer, and its rows were made like the rows of the angels." He said: The Prophet, peace and blessings of Allah be upon him, used to say this: "And I was given these verses from the end of Al-Baqarah from a treasure beneath the Throne; no prophet before me was given them." Abu Mu'awiyah said: All of it is from the Prophet, peace and blessings of Allah be upon him.