رَبَّنَا وَلَكَ الْحَمْدُ، حَمْدًا كَثِيْرًا طَيِّبًا مُبَارَكًا فِيهِ
Transliteration
Rabbanaa wa lakal-hamd, hamdan katheeran tayyiban mubaarakan feeh
Translation
Our Lord, praise is Yours, abundant, good and blessed praise.
During one prayer behind the Prophet (ﷺ), he stood up from bowing and said, "Sami'Allah Huliman 'Hamidah." Someone praying behind him then said -
رَبَّنَا وَلَكَ الْحَمْدُ، حَمْدًا كَثِيْرًا طَيِّبًا مُبَارَكًا فِيهِ
Transliteration
Rabbanaa wa lakal-hamd, hamdan katheeran tayyiban mubaarakan feeh
Translation
Our Lord, praise is Yours, abundant, good and blessed praise.
Note
After finishing salah, the Prophet (ﷺ) asked, "Who said those words?" The man said, "I did." The Prophet (ﷺ) told him, "More than thirty angels rushed to write it down first."
Say this dua after standing from ruku. It brings huge rewards. The Prophet saw over thirty angels race to record these words of praise. Your namaz becomes full of blessings.
It means Our Lord, all praise belongs to You. We say this in every prayer to thank Allah.
Right after you stand up from bowing. Say it once you are standing straight, after the Imam says Sami Allahu Liman Hamidah.
The full dua with hamdan kathiran tayyiban mubarakan fih has great reward. The Prophet SAW said angels raced to write it down.
Yes, your prayer is still valid. But the full masnoon dua gives much more reward in salah.
Everyone says it in Arabic. The dua is Rabbana lakal hamd hamdan kathiran tayyiban mubarakan fih.
Stand completely still after ruku. Say the dua quietly, thinking about the praise you are giving.
Sahih al-Bukhari has it. The Prophet SAW approved when a companion said these exact words.