Musannaf Ibn Abi Shayba 27:103

Muhammad ibn Mus'ab narrated to us, from al-Awza'i, from Yahya ibn Abi Kathir, from Hilal ibn Abi Maymuna, from 'Ata' ibn Yasar, from Rifa'a al-Juhani, who said: We descended with the Messenger of Allah, may Allah bless him and grant him peace, and he said: "My Lord has promised me that He will enter seventy thousand of my nation into Paradise without reckoning and without punishment."