Abu Huraira reported God’s messenger as saying that if anyone sits in an assembly where there is much clamour* and says before getting up to leave, “Glory be to You, O God, and I begin with praise of You; I testify that there is no god but You; I ask Your pardon and turn to You in repentance,” he will be forgiven for what took place in that assembly where he was. *Or, ‘wicked talk,’ or, 'meaningless talk' Tirmidhi and Baihaqi in <i>[Kitab] ad-Da'awat al-kabir</i>, transmitted it.

وَعَنْ أَبِي هُرَيْرَةَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:

مَنْ جَلَسَ مَجْلِسًا فَكَثُرَ فِيهِ لَغَطُهُ فَقَالَ قَبْلَ أَنْ يَقُومَ: سُبْحَانَكَ اللَّهُمَّ وَبِحَمْدِكَ أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا أَنْتَ أَسْتَغْفِرُكَ وَأَتُوبُ إِلَيْكَ إِلَّا غُفِرَ لَهُ مَا كَانَ فِي مَجْلِسِهِ ذَلِكَ

. رَوَاهُ التِّرْمِذِيّ وَالْبَيْهَقِيّ فِي الدَّعْوَات الْكَبِير