Was the al aqusa mosque that prophet saw in his night dream the same alaqusa we have today or a different mosque in jerusalem?

As Salam Aleikhum brothers and sisters I want a clear understanding regarding the prophets night journey and vision I understand he had a journey from mecca to jerusalem but the present al aqusa and dome of the rock where non existent during his time before his time during prophet Ishas time there was a temple of the jews so which al aqusa did the prophet see in his dreams in Syria there is mosques one also called white mosque I also know he went up to heaven did he see a alaqusa in heaven going by real history.Can you explain to me the night journey like as if I am with the prophet right now thank you jazak allahu khair.