He said:

When Nestorius was exiled, he made his way to Egypt and took up residence on an estate in Upper Egypt called Ikhmīm. There he died and was buried.

His doctrine had faded into obscurity, but after a long interval it was revived by the Metropolitan of Nisibis during the reign of Boesitianos, king of the Romans, and Qibad ibn Fīrūz, king of the Persians. The metropolitan spread the teaching throughout the eastern regions, and for that reason the Nestorians became numerous in the East—especially in the Persian territories of Iraq, Mosul, Nisibis, along the Euphrates, and in al-Jazīrah.

Saʿīd ibn al-Batrīq says: I have deemed it proper at this point to respond to the Nestorians, demonstrating the invalidity and corruption of their position. The Nestorians of our own era have departed from the original words of Nestorius, claiming that he used to say the Messiah consists of two essences and two hypostases: a complete God in His hypostasis and essence, and a complete man in His hypostasis and essence. They also maintain that Mary gave birth to the Messiah only in respect of His human nature, not His divine nature; for, according to them, the Father begot a god and did not beget a man, while Mary gave birth to a man and did not give birth to a god.