Musannaf Ibn Abi Shayba 23:78

Yazid ibn Harun narrated to us, he said: Ibn Abi Dhi’b informed us, from al-Zuhri, from ‘Amir ibn Sa’d, from his father, that a group of people came to the Messenger of Allah (may Allah bless him and grant him peace), and he gave them [gifts], except for one man among them. Sa’d said: "O Messenger of Allah, you gave them and left out so-and-so. By Allah, I truly see him as a believer." The Messenger of Allah (may Allah bless him and grant him peace) said: "Or a Muslim?" Sa’d said: "By Allah, I truly see him as a believer." The Messenger of Allah (may Allah bless him and grant him peace) said: "Or a Muslim?" The Messenger of Allah (may Allah bless him and grant him peace) said that three times.