:salam2:
The ‘Quraish’ sent their men to the Jewish Rabbai of Madinah to ask about Prophet Muhammad 
the Messenger of Almighty Allah. The Jewish Rabbai of Madinah put forward following three questions to be asked from Prophet Muhammad by the ‘Quraish’, and if Prophet Muhammad answered correctly then He is a true Messenger. Questions are as under:-
- Ask Him (Prophet Muhammad ) about some young men in ancient times, what was their story for theirs is a strange and wondrous tale.
- Ask Him about a man who traveled a great deal and reached the east and the west of the earth. What was his story?
- And ask Him about the “Ruh - soul or spirit”, what is it?
Please share related information in details with references, if possible. 