(اَللَّهُمَّ) رَبَّنَا وَلَكَ الْحَمْدُ
Pronunciation
(1) Rabbanaa wa lakal-hamd (2) Allaahumma Rabbanaa wa lakal-hamd
Meaning
[1] Our Lord and to You be the praise. [2] O Allah, our Lord and to You be the praise. After rukoo' one should stand straight for a while. It is obligatory upon all. If anyone goes to prostration before stand straight (for a while) then it will invalidate his salaah. In the state of rukoo' one should say one of these four duas. It is recommended to say these supplications alternatively.
Source: Bukhari: 795
Read the hadith
حَدَّثَنَا آدَمُ، قَالَ حَدَّثَنَا ابْنُ أَبِي ذِئْبٍ، عَنْ سَعِيدٍ الْمَقْبُرِيِّ، عَنْ أَبِي هُرَيْرَةَ، قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا قَالَ " سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ ". قَالَ " اللَّهُمَّ رَبَّنَا وَلَكَ الْحَمْدُ ". وَكَانَ النَّبِيُّ صلى الله عليه وسلم إِذَا رَكَعَ وَإِذَا رَفَعَ رَأْسَهُ يُكَبِّرُ، وَإِذَا قَامَ مِنَ السَّجْدَتَيْنِ قَالَ " اللَّهُ أَكْبَرُ ".
Narrated Abu Huraira: When the Prophet (ﷺ) said, "Sami`a l-lahu liman hamidah," (Allah heard those who sent praises to Him), he would say, "Rabbana wa laka l-hamd." On bowing and raising his head from it the Prophet (ﷺ) used to say Takbir. He also used to say Takbir on rising after the two prostrations. (See Hadith No. 656). [Bukhari: 795]
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset