How Christianity Reached Arabia

What about Christianity? When ʿĪsā (peace be upon him) was sent, some of his followers dispersed in the land, and Christianity was dividing into many sects very early on. And very early on, many of these sects became disbelievers — ḍalālah, misguidance, was introduced very early on into the sects of Christianity. However, there were pockets of believers here and there that were able to retain the true Christian faith that was preached by Sayyidunā ʿĪsā, Jesus (peace be upon him): believing in the oneness of Allah, believing that ʿĪsā is the messenger of Allah rather than being the son of God. These were concepts that were retained by some of the Christians around the world.

One of these men made it into Yemen and started preaching in the area of Najrān, and the religion was spreading, but secretly and privately and slowly. By that time, Tubbaʿ Asʿad was dead, and the king of Yemen was his son, Dhū Nuwās. News of this new religion reached the king, and he banned it, and he persecuted the followers.