2 verses have
“رَبُّنَا”
in Edition Uthmani / Ash-Shu'araa (The Poets)
50:26قَالُوا۟ لَا ضَيْرَ ۖ إِنَّآ إِلَىٰ رَبِّنَا مُنقَلِبُونَ
51:26إِنَّا نَطْمَعُ أَن يَغْفِرَ لَنَا رَبُّنَا خَطَٰيَٰنَآ أَن كُنَّآ أَوَّلَ ٱلْمُؤْمِنِينَ
Support Ayat Al Quran
Those who spend their wealth by night and day, privately and publicly, will receive their reward from their Lord. They have nothing to fear, nor shall they grieve.
The Holy Quran · Al-Baqara (The Cow) · 2:274