Full Sharh — Mishkat al-Masabih 2327
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
English Translation
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 Thee, O God, and I begin with praise of Thee; I testify that there is no god but Thou; I ask Thy pardon and turn to Thee 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 ad-Da'awat al-kabir, transmitted it.
Source
Mishkat al-Masabih(مشكاة المصابيح)
Supplications
Hadith Number
2327