Sahih Al Bukhari Hadith Number 926

Narrated Al-Miswar bin Makhrama: Once Allah’s Messenger (peace be upon him) got up for delivering the Khutba and I heard him after “Tashah-hud” saying “Amma ba’du.”

11  Friday Prayer
Hadith number 926
Volume no 2
Chapter: 29 (Saying “Ammaba’du” in the Khutba)