Hazrat Sa’d bin Abi Waqqas (may Allah be pleased with him) narrated that when the Messenger of Allah (peace and blessings of Allah be upon him) set out for the Battle of Tabuk, he appointed Hazrat Ali (may Allah be pleased with him) as his deputy in Madinah. Ali (may Allah be pleased with him) said,“Are you leaving me among children and women?”The Messenger of Allah (peace and blessings of Allah be upon him) said,“Are you not pleased that you are to me as Harun (Aaron) was to Musa (Moses)? But the difference is that there will be no prophet after me.”