Sahih Bukhari
Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi)
Volume: 005 / Book Number: 059 / Hadith Number: 700
Narrated Sad:
Allah's Apostle 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 said, "Will you not be pleased that you will be to me like Aaron to Moses? But there will be no prophet after me."