Arabic hadith text
حَدَّثَنَا مُعَاذُ بْنُ فَضَالَةَ، قَالَ‏:‏ حَدَّثَنَا هِشَامٌ الدَّسْتُوَائِيُّ، عَنْ يَحْيَى هُوَ ابْنُ أَبِي كَثِيرٍ، عَنْ أَبِي سَلَمَةَ قَالَ‏:‏ حَدَّثَنِي رَبِيعَةُ بْنُ كَعْبٍ قَالَ‏:‏ كُنْتُ أَبِيتُ عِنْدَ بَابِ النَّبِيِّ صلى الله عليه وسلم فَأُعْطِيهِ وَضُوءَهُ، قَالَ‏:‏ فَأَسْمَعُهُ الْهَوِيَّ مِنَ اللَّيْلِ يَقُولُ‏:‏ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ، وَأَسْمَعُهُ الْهَوِيَّ مِنَ اللَّيْلِ يَقُولُ‏:‏ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ‏.‏
Translation

Rabi'a ibn Ka'b related, "I used to spend the night at the doorof the Prophet, may Allah bless him and grant him peace, and I would givehim his wudu' water." He said, "After a long period of the night had passed,I heard him say, 'Allah hears whoever praises Him,' and I heard him sayafter a long period of the night had passed, 'Praise be to Allah, Lordof the Worlds.'"