Silsilah as-Sahihah 3371 — Prophet’s advice to treat Copts kindly

It is narrated from Sayyida Umm Salamah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings of Allah be upon him), while advising at the time of his death, said: "Fear Allah, fear Allah regarding the Copts of Egypt, for soon you will overpower them and they will be your helpers and supporters in the way of Allah."