رَبَّنَآ ءَامَنَّا بِمَآ أَنزَلْتَ وَٱتَّبَعْنَا ٱلرَّسُولَ فَٱكْتُبْنَا مَعَ ٱلشَّٰهِدِينَ

Rabbana amanna bima anzalta wattaba 'nar-Rusula fak-tubna ma'ash-Shahideen

Word By Word:

Rabbana: Our Lord

amanna: We believe

bima: in what 

anzalta: You Revealed

wattaba'nar: and we followed

Rusula: The Messenger

fak tubna: the write us

ma'ash Shaideen: among the witness

Translation: Our Lord! We believe in what Thou hast revealed, and we follow the Messenger. Then write us down among those who bear witness [3:53]

Tafseer: This Dua was made by the helpers of Eesa AS when Eesa AS asked his nation that who amongst them will be his helpers. They agreed and read this Dua as emphasis of their claim.