[Machine] The Messenger of Allah ﷺ never sat in a gathering, recited the Quran, or performed a prayer without ending it with these words. I said to him, "O Messenger of Allah, I always see you ending every gathering, recitation, and prayer with these words. He replied, "Yes, whoever says something good, a seal is placed upon it, and whoever says something evil, it serves as an expiation for him. Glory is to You (O Allah), and praise belongs to You. There is no god except You. I seek Your forgiveness and repent to You."  

مَا جَلَسَ رَسُولُ اللهِ ﷺ مَجْلِسًا قَطُّ وَلَا تَلَا قُرْآنًا وَلَا صَلَّى صَلَاةً إِلَّا خَتَمَ ذَلِكَ بِكَلِمَاتٍ قَالَتْ فَقُلْتُ يَا رَسُولَ اللهِ أَرَاكَ مَا تَجْلِسُ مَجْلِسًا وَلَا تَتْلُو قُرْآنًا وَلَا تُصَلِّي صَلَاةً إِلَّا خَتَمْتَ بِهَؤُلَاءِ الْكَلِمَاتِ؟ قَالَ نَعَمْ مَنْ قَالَ خَيْرًا خُتِمَ لَهُ طَابَعٌ عَلَى ذَلِكَ الْخَيْرِ وَمَنْ قَالَ شَرًّا كُنَّ لَهُ كَفَّارَةً سُبْحَانَكَ وَبِحَمْدِكَ لَا إِلَهَ إِلَّا أَنْتَ أَسْتَغْفِرُكَ وَأَتُوبُ إِلَيْكَ