#TheKnowers: Nasṭūr (Nestorius)
Nearly all of us know or have heard of the incident that occurred between the Prophet (ﷺ) and the Christian monk Baḥīrā, but this is not an isolated incident, it is something that occurred after as well. One such occasion was when the Prophet (ﷺ) was around 25 years old, when people would refer to him (ﷺ) as al-Amīn, the Trustworthy. Abū Ṭālib explained to his nephew, the Prophet (ﷺ), that due to the hard times they had encountered, their trade had deteriorated drastically, they had little commerce or resources. He advised his nephew to join a caravan that was being prepared by Khadīja daughter of Khuwaylid, so it would be a good idea for him to offer his services to her trade convoy to Syria. Word reached Khadīja, aware that he (ﷺ) was a trustworthy individual she offered to double his wages and asked him to trade on her behalf. He agreed and set out for Syria, he was accompanied by one of her slave called Maysara. This of course happened prior to their marriage.
When they reached the market town of Buṣrā in Syria they sat in the shade of a tree, the tree was visible from the cell of a monk named Nasṭūr. I am unable to corroborate if it is the blessed tree I mentioned a few days ago, but the Quraysh caravans seemed to take the same route, so it is possible that it is the very same tree. In addition to that it is possible that Nasṭūr may have inherited the cell that was once occupied by Baḥīrā along with all its contents including his precious books. The one conclusion we can draw confidentially is that Nasṭūr had been living in that area for a while, this fact is given considerable weight by him already knowing Maysara potentially from previous trips. He approached Maysara and asked him who was sitting under the tree. Masysara replied, “A man from Quraysh, the people of the Sanctuary.” The monk replied, “None but a Prophet is sitting under the tree. Is there redness in his eyes?” Maysara confirmed this stating it was always present. The monk replied, “It is he, it is he! The last of the Prophets! Would that I be around when he is commanded to appear!”
The coming of a final Prophet, and even a description exists in ancient texts such as the Tawrāh, this is what led many monks to conclude that this final Prophet could be non other than Muḥammad ibn ʻAbd Allāh.
[Source: Ibn Saʻd; al-Ṭabaqāt al-Kubrā]