2 verses have
“أَجْرَ”
in Edition Uthmani / Al-A'raaf (The Heights)
113:7وَجَآءَ ٱلسَّحَرَةُ فِرْعَوْنَ قَالُوٓا۟ إِنَّ لَنَا لَأَجْرًا إِن كُنَّا نَحْنُ ٱلْغَٰلِبِينَ
170:7وَٱلَّذِينَ يُمَسِّكُونَ بِٱلْكِتَٰبِ وَأَقَامُوا۟ ٱلصَّلَوٰةَ إِنَّا لَا نُضِيعُ أَجْرَ ٱلْمُصْلِحِينَ
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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