From Sahih Bukhari (Hadith 4416):
Narrated Sa`d:Allah's Messenger (ﷺ) set out for Tabuk. appointing `Ali as his deputy (in Medina). `Ali said, "Do you want to leave me with the children and women?" The Prophet (ﷺ) said, "Will you not be pleased that you will be to me like Aaron to Moses? But there will be no prophet after me
Reference: Bukhari 4416