Musannaf Ibn Abi Shayba 16:307

Abu Bakr narrated to us, he said: Ibn ‘Uyaynah narrated to us, from ‘Amr, from Yahya ibn Ja‘dah, he said: A black man with smallpox that had peeled off came. He would not sit next to anyone except that they would make him stand up. So the Messenger of Allah, may Allah bless him and grant him peace, took him and made him sit next to him.