رَبَّنَا لَا تُزِغْ قُلُوبَنَا بَعْدَ إِذْ هَدَيْتَنَا وَهَبْ لَنَا مِن لَّدُنكَ رَحْمَةً ۚ إِنَّكَ أَنتَ ٱلْوَهَّابُ ﴿٨﴾

Transliteration: Rabbana la tuzigh qulubana ba'da idh hadaytana wa hab lana min ladunka rahmah, innaka antal-Wahhab.

Translation: Our Lord! Cause not our hearts to stray after Thou hast guided us, and bestow upon us mercy from Thy Presence. Lo! Thou, only Thou, art the Bestower.

Source: Quran 3:8 (Surah Ali 'Imran)

When to recite

At any time, especially when worried about weakening faith.

About this dua

Said by those “firmly grounded in knowledge” (Quran 3:7–8). Having been guided, they ask Allah not to let their hearts swerve and to grant them mercy — a reminder that guidance is a gift to be protected.

Source and authenticity