“I said to Umm Salamah: ‘O Mother of the Believers! What was the supplication that the Messenger of Allah ﷺ said most frequently when he was with you?” She said: ‘The supplication he said most frequently was: “O Changer of the hearts, make my heart firm upon Your religion (Yā Muqallibal-qulūb, thabbit qalbī ʿalā dīnik).’” She said: ‘So I said: “O Messenger of Allah, why do you supplicate so frequently: ‘O Changer of the hearts, make my heart firm upon Your religion.’ He said: ‘O Umm Salamah! Verily, there is no human being except that his heart is between Two Fingers of the Fingers of Allah, so whomsoever He wills He makes steadfast, and whomever He wills He causes to deviate.’”  

قُلْتُ لأُمِّ سَلَمَةَ يَا أُمَّ الْمُؤْمِنِينَ مَا كَانَ أَكْثَرُ دُعَاءِ رَسُولِ اللَّهِ ﷺ إِذَا كَانَ عِنْدَكِ قَالَتْ كَانَ أَكْثَرُ دُعَائِهِ يَا مُقَلِّبَ الْقُلُوبِ ثَبِّتْ قَلْبِي عَلَى دِينِكَ قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ مَا لأَكْثَرِ دُعَائِكَ يَا مُقَلِّبَ الْقُلُوبِ ثَبِّتْ قَلْبِي عَلَى دِينِكَ قَالَ يَا أُمَّ سَلَمَةَ إِنَّهُ لَيْسَ آدَمِيٌّ إِلاَّ وَقَلْبُهُ بَيْنَ أُصْبُعَيْنِ مِنْ أَصَابِعِ اللَّهِ فَمَنْ شَاءَ أَقَامَ وَمَنْ شَاءَ أَزَاغَ فَتَلاَ مُعَاذٌ ( ربَّنَا لاَ تُزِغْ قُلُوبَنَا بَعْدَ إِذْ هَدَيْتَنَا ) قَالَ وَفِي الْبَابِ عَنْ عَائِشَةَ وَالنَّوَّاسِ بْنِ سَمْعَانَ وَأَنَسٍ وَجَابِرٍ وَعَبْدِ اللَّهِ بْنِ عَمْرٍو وَنُعَيْمِ بْنِ هَمَّارٍ قَالَ وَهَذَا حَدِيثٌ حَسَنٌ  

[Machine] The Messenger of Allah used to frequently supplicate, saying, "O Allah, the Turner of hearts, make my heart steadfast upon Your religion." I asked, "O Messenger of Allah, do hearts really change?" He replied, "Yes, indeed. There is no person from the offspring of Adam except that their heart is between two of the fingers of Allah. If He wills, He keeps it firm, and if He wills, He deviates it. So, we ask Allah, our Lord, not to let our hearts deviate after He has guided us, and we ask Him to bestow upon us from His mercy, for He is the Bestower." I asked, "O Messenger of Allah, can you teach me a supplication that I can make for myself?" He said, "Certainly, say, 'O Allah, Lord of Muhammad, forgive my sins and remove the anger from my heart and protect me from the misguidance of trials as long as You keep me alive.'"  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يُكْثِرُ فِي دُعَائِهِ أَنْ يَقُولَ اللهُمَّ مُقَلِّبَ الْقُلُوبِ ثَبِّتْ قَلْبِي عَلَى دِينِكَ قَالَتْقُلْتُ يَا رَسُولَ اللهِ أَوَ إِنَّ الْقُلُوبَ لَتَتَقَلَّبُ؟ قَالَ نَعَمْ مَا مِنْ خَلْقِ اللهِ مِنْ بَنِي آدَمَ مِنْ بَشَرٍ إِلَّا أَنَّ قَلْبَهُ بَيْنَ أُصْبُعَيْنِ مِنْ أَصَابِعِ اللهِ فَإِنْ شَاءَ اللهُ ﷻ أَقَامَهُ وَإِنْ شَاءَ أَزَاغَهُ فَنَسْأَلُ اللهَ رَبَّنَا أَنْ لَا يُزِيغَ قُلُوبَنَا بَعْدَ إِذْ هَدَانَا وَنَسْأَلُهُ أَنْ يَهَبَ لَنَا مِنْ لَدُنْهُ رَحْمَةً إِنَّهُ هُوَ الْوَهَّابُ قَالَتْ قُلْتُ يَا رَسُولَ اللهِ أَلَا تُعَلِّمُنِي دَعْوَةً أَدْعُو بِهَا لِنَفْسِي؟ قَالَ بَلَى قُولِي اللهُمَّ رَبَّ النَّبِيِّ مُحَمَّدٍ اغْفِرْ لِي ذَنْبِي وَأَذْهِبْ غَيْظَ قَلْبِي وَأَجِرْنِي مِنْ مُضِلَّاتِ الْفِتَنِ مَا أَحْيَيْتَنَا