One night Messenger of Allah ﷺ stood up after the prayer and recited "Tashah-hud" and then praised Allah as He deserved and said, "Amma ba'du."
أَنَّهُ أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ ﷺ قَامَ عَشِيَّةً بَعْدَ الصَّلاَةِ فَتَشَهَّدَ وَأَثْنَى عَلَى اللَّهِ بِمَا هُوَ أَهْلُهُ ثُمَّ قَالَ أَمَّا بَعْدُ