397. Reply to Congratulations in Islam (Barakallahu Laka Wa JazakAllah Khairan)
بَارَكَ اللَّهُ لَكَ، وَبَارَكَ عَلَيْكَ، وَجَزَاكَ اللَّهُ خَيْرًا، وَرَزَقَكَ اللَّهُ مِثْلَهُ، وَأَجْزَلَ ثَوَابَكَ
بَارَكَ اللّٰهُ لَكَ، وَبَارَكَ عَلَيْكَ، وَجَزَاكَ اللّٰهُ خَيْرًا، وَرَزَقَكَ اللّٰهُ مِثْلَهٗ، وَاَجْزَلَ ثَوَابَكَ
Baarakallahu laka wa baaraka 'alayka, wa jazaakAllahu khayran, wa razaqakAllahu mithlahu, wa 'ajzala thawaabaka
Translation
May Allah bless you, and shower His blessings upon you, and may Allah reward you well and bestow upon you its like and reward you abundantly.
The above congratulations and answer are narrated from some of the Companions.