حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا الأَعْمَشُ، عَنْ يَزِيدَ الرَّقَاشِيِّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ كَانَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ يُكْثِرُ أَنْ يَقُولَ " اللَّهُمَّ ثَبِّتْ قَلْبِي عَلَى دِينِكَ " . فَقَالَ رَجُلٌ يَا رَسُولَ اللَّهِ تَخَافُ عَلَيْنَا وَقَدْ آمَنَّا بِكَ وَصَدَّقْنَاكَ بِمَا جِئْتَ بِهِ فَقَالَ " إِنَّ الْقُلُوبَ بَيْنَ إِصْبَعَيْنِ مِنْ أَصَابِعِ الرَّحْمَنِ عَزَّ وَجَلَّ يُقَلِّبُهَا " . وَأَشَارَ الأَعْمَشُ بِإِصْبَعَيْهِ .
It was narrated that Anas bin Malik said: "The Messenger of Allah (saas) often used to say: 'Allahumma thabbit qalbi 'ala dinika [O Allah, make my heart steadfast in (adhering to) Your religion].' A man said: 'O Messenger of Allah! Do you fear for us when we have believed in you and in (the Message) that you have brought?' He said: 'Hearts are between two of the fingers of the Most Merciful, and He controls them.'" (Hasan)Al-A'mash (one of the narrators) indicated with his fingers. Translation Not Available
Book Ref: Sunan Ibn Majah Book 34 Hadith 3834
Web Ref: Sunan Ibn Majah Vol 5 Book 34 Hadith 3834