Musannaf Ibn Abi Shayba 34:281

Abu Usama narrated to us, he said: Hammad bin Salama narrated to us, from Ali bin Zaid, from Abu Nadra, who said: Ibn Abbas delivered a sermon to us in Basra and said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "I am the first one for whom the earth will split open, and there is no boast."