For the expiation of sins, said at the conclusion of a sitting or gathering

[سُبْحـانَكَ اللّهُـمَّ وَبِحَمدِك، أَشْهَـدُ أَنْ لا إِلهَ إِلاّ أَنْتَ أَسْتَغْفِرُكَ وَأَتوبُ إِلَـيْك.

Subhanakal-lahumma wabihamdik, ashhadu an la ilaha illa ant, astaghfiruka wa-atoobu ilayk.

‘How perfect You are 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.’

, Cont.79. Supplication for concluding all sittings

AAaishah رضي الله عنها  said: Whenever The Messenger of Allah would betake a seat, read Quran or pray, he would always conclude it with certain words, I (i.e. AAaishah) said: O Messenger of Allah, I have noticed that whenever you betake a seat, read Quran or pray, you always conclude it with these words. He said: Yes, whoever speaks good, it (i.e. the supplication) will be a seal for that goodness and whoever speaks ill, it will be an atonement for him.’

سُبْحـانَكَ وَبِحَمدِك، لا إِلهَ إِلاّ أَنْتَ أَسْتَغْفِرُكَ وَأَتوبُ إِلَـيْك.

Subhanaka wabihamdik, la ilaha illa anta astaghfiruka wa-atoobu ilayk.

‘How perfect You are and I praise You.  None has the right to be worshipped except You, I seek Your forgiveness and turn in repentance to You.’]