Expiation of the gathering

سُبْحَانَكَ اللَّهُمَّ وَبِحَمْدِكَ، أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ أَنْتَ، أَسْتَغْفِرُكَ وَأَتُوبُ إِلَيْكَ

Subhanakallahumma wa bihamdika, ash-hadu an la ilaha illa ant, astaghfiruka wa atubu ilayk

“Glory is to You, O Allah, and praise; I bear witness that there is no god but You; I seek Your forgiveness and turn to You in repentance. (Said at the end of a gathering, it expiates what happened in it.)”

— Sunan at-Tirmidhi 3433 (sahih)