Further historical note
The Calif at the time resided in Amman (Jordan), but his court was getting restless - never a good sign. Therefore, to change it up, he moved his capitol to Jerusalem where he commissioned the Temple as a tourist attraction run by his court. Eventually, they got bored and the Calif moved the capital back to Amman.
So wherever Mighty Mohammad ‘ascended’ from was wherever the assassins found him, but was not hundreds of miles north in Jerusalem.
Doubtful that anything was happening in “Mecca” anyway… the true origins were “way up north” anyway.