Narrated AbuQatadah:

The Prophet ﷺ went out at night and found AbuBakr praying in a low voice, and he passed Umar ibn al-Khattab who was raising his voice while praying.

When they both met the Prophet ﷺ together, the Prophet ﷺ said: I passed by you, AbuBakr, when you were praying in a low voice. He replied: I made Him hear with Whom I was holding intimate converse, Messenger of Allah. He (the Prophet) said to Umar: I passed by you when you were praying in a loud voice. He replied: Messenger of Allah, I was awakening the drowsy and driving away the Devil.

Al-Hasan added in his version: The Prophet ﷺ said: Raise your voice a little, AbuBakr, and he said to Umar: Lower your voice a little.

حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا حَمَّادٌ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنِ النَّبِيِّ ﷺ ح وَحَدَّثَنَا الْحَسَنُ بْنُ الصَّبَّاحِ، حَدَّثَنَا يَحْيَى بْنُ إِسْحَاقَ، أَخْبَرَنَا حَمَّادُ بْنُ سَلَمَةَ، عَنْ ثَابِتٍ الْبُنَانِيِّ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي رَبَاحٍ، عَنْ أَبِي قَتَادَةَ، : أَنَّ النَّبِيَّ ﷺ خَرَجَ لَيْلَةً فَإِذَا هُوَ بِأَبِي بَكْرٍ - رضى الله عنه - يُصَلِّي يَخْفِضُ مِنْ صَوْتِهِ - قَالَ - وَمَرَّ بِعُمَرَ بْنِ الْخَطَّابِ وَهُوَ يُصَلِّي رَافِعًا صَوْتَهُ - قَالَ - فَلَمَّا اجْتَمَعَا عِنْدَ النَّبِيِّ ﷺ قَالَ النَّبِيُّ ﷺ : " يَا أَبَا بَكْرٍ مَرَرْتُ بِكَ وَأَنْتَ تُصَلِّي تَخْفِضُ صَوْتَكَ " . قَالَ : قَدْ أَسْمَعْتُ مَنْ نَاجَيْتُ يَا رَسُولَ اللَّهِ . قَالَ وَقَالَ لِعُمَرَ : " مَرَرْتُ بِكَ وَأَنْتَ تُصَلِّي رَافِعًا صَوْتَكَ " . قَالَ فَقَالَ : يَا رَسُولَ اللَّهِ أُوقِظُ الْوَسْنَانَ وَأَطْرُدُ الشَّيْطَانَ . زَادَ الْحَسَنُ فِي حَدِيثِهِ : فَقَالَ النَّبِيُّ ﷺ : " يَا أَبَا بَكْرٍ ارْفَعْ مِنْ صَوْتِكَ شَيْئًا " . وَقَالَ لِعُمَرَ : " اخْفِضْ مِنْ صَوْتِكَ شَيْئًا " .