Answer:
Al Isra Wal Miraj stands for the night journey where Muhammad went with the Arc-Angel Gabriel to Sidrat Al mountaha. Sidrat Al montaha is the maximum place living things can reach. During Al Isra and Al Miraj, the prophet Muhammad met many other prophets like Moses. At this night, the order to start prayers was announced by God to the prophey Muhammad. Muslims should have done 55 prayers but after Muhammad discussed with Moses, he went again and asked God to reduce the numbers of prayers. The number of prayers was reduced to 5, wich is the number of prayers Muslims do in a single day. Muhammad went to Al-Quds this night. Muhammad was transported using a creature called Al-burak, wich is fast creature that can reach a place by just looking at it. During this night, Muhammad saw where Angels do their prayers.