Musannaf Ibn Abi Shayba 34:117

Muhammad ibn Mus'ab narrated to us, from al-Awza'i, from al-Zuhri, from Yahya, from Abu Salamah, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "I am the master of the children of Adam, and the first for whom the earth will split open, and the first intercessor, and the first whose intercession will be accepted."