قَالَ : وَكَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُعَلِّمُنَا كَلِمَاتٍ نَدْعُو بِهِنَّ فِي صَلَاتِنَا ، أَوْ قَالَ فِي دُبُرِ صَلَاتِنَا : " اللَّهُمَّ إِنِّي أَسْأَلُكَ الثَّبَاتَ فِي الْأَمْرِ ، وَأَسْأَلُكَ عَزِيمَةَ الرُّشْدِ ، وَأَسْأَلُكَ شُكْرَ نِعْمَتِكَ ، وَحُسْنَ عِبَادَتِكَ ، وَأَسْأَلُكَ قَلْبًا سَلِيمًا وَلِسَانًا صَادِقًا ، وَأَسْتَغْفِرُكَ لِمَا تَعْلَمُ ، وَأَسْأَلُكَ مِنْ خَيْرِ مَا تَعْلَمُ ، وَأَعُوذُ بِكَ مِنْ شَرِّ مَا تَعْلَمُ " .
And the Prophet (peace be upon him) used to teach us these words which we used to recite in prayer or after prayer: O Allah! I ask You for steadfastness in religion, firmness upon guidance, the ability to give thanks for Your blessings, the best manner of worshipping You, a sound heart, and a truthful tongue. I also ask You for the good of what You know, and seek refuge in You from the evil of what You know, and I seek Your forgiveness for all the sins that You know.