It is reported that al-Hasan said, "Are you not astonished by this man? (i.e. Malik ibn al-Mundhir) He went to some of the old people of Kaskar who had become Muslim and examined them and then commanded that they be circumcised although it was winter. I heard that some of them died. Greeks and Abyssinians became Muslim with the Messenger of Allah (ﷺ) and they were not examined at all."