Musnad Abu Ya'la al-Mawsili 42:341

Zuhayr narrated to us, Abdullah bin Yazid narrated to us, Abd al-Rahman bin Ziyad narrated to us, from Abdullah bin Rashid, the freed slave of Uthman bin Affan, who said: I heard Abu Sa’id al-Khudri say: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, before the Most Merciful is a Tablet containing three hundred and fifteen laws. The Most Merciful says: 'By My Might and My Majesty, no servant of Mine who does not associate anything with Me shall come with one of them, except that he will enter Paradise.'"