The Battle of the Battles

Safronius was aware of a pact that Al-Mul al-A'anhu made to the Christians of Egypt. He wanted this type of a guarantee for Jerusalem from Omar radi Allahu ta'ala anhosh. So Abu Arbada, he tries his last hand. The Byzantines didn't fall for it. They said, listen, we want Al-MUL al-A’anhu to come. Some more context to this that the scholars mentioned. Books about Christianity were written in Egypt under Muslim rule.