What does the Muslim say at the end of a sitting or gathering?

سُبْحَانَ اللهِ وَبِحَمْدِهِ، سُبْحَانَكَ اللهُمَّ وَبِحَمْدِكَ، أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا أَنْتَ، أَسْتَغْفِرُكَ وَأَتُوبُ إِلَيْكَ

Glory to Allah and praise be to Him, Glory to You, O Allah, and I praise You. I bear witness that None has the right to be worshipped except You. I seek Your forgiveness and turn to You in repentance.