The Prophet Salallahu Alaihi Wasallam

The Prophet Salallahu Alaihi Wasallam used to pray towards what was his kibla? An oxal. He would put the caba between him and an oxal. So he wasn't actually praying to the caba, right? Or in the direction of the caba; he was really praying for Jerusalem. And I saw the Prophet standing by himself praying in front of thecaba. It's a panel of the incident. Look how specific this is.