145
بَارَكَ اللَّهُ لَكَ فِي الْمَوْهُوبِ لَكَ، وَشَكَرْتَ الْوَاهِبَ، وَبَلَغَ أَشُدَّهُ، وَرُزِقْتَ بِرَّهُ. بَارَكَ اللَّهُ لَكَ وَبَارَكَ عَلَيْكَ، وَجَزَاكَ اللَّهُ خَيْرًا، وَرَزَقَكَ اللَّهُ مِثْلَهُ، وَأَجْزَلَ ثَوَابَكَ
Barakallahu laka fil-mawhubi lak, washakartal-wahib, wabalagha ashuddah, waruziqta birrah. barakallahu laka wabaraka 'alayka, wajazakallahu khayra, warazaqakallahu mithlah, wa ajzala thawabak
May Allah bless you in the one given to you; may you give thanks to the Giver; may he reach full maturity; and may you be granted his devotion. — May Allah bless you and send blessings upon you, may Allah reward you with good, grant you the like of it, and make your reward abundant.
The second part is the reply of the one being congratulated.
Source as cited by the compiler See an-Nawawī, al-Adhkār p. 349; Salīm al-Hilālī, Ṣaḥīḥ al-Adhkār 2/713