Sa'd bin Abi Waqqas reported that Allah's Messenger (ﷺ) left ' Ali Ibn Abi Talib (RA) behind him (as he proceeded) to the expedition of Tabuk, whereupon he ('Ali) said: Allah's Messenger, are you leaving me behind amongst women 4nd children? Thereupon he (the Holy Prophet) said: Aren't you satisfied with being unto me what Aaron was unto Moses (ؑ) but with this exception that there would be no prophet after me.