2 verses have
“صِدْقِهِمْ”
in Edition Uthmani / Al-Ahzaab (The Clans)
8:33لِّيَسْـَٔلَ ٱلصَّٰدِقِينَ عَن صِدْقِهِمْ ۚ وَأَعَدَّ لِلْكَٰفِرِينَ عَذَابًا أَلِيمًۭا
24:33لِّيَجْزِىَ ٱللَّهُ ٱلصَّٰدِقِينَ بِصِدْقِهِمْ وَيُعَذِّبَ ٱلْمُنَٰفِقِينَ إِن شَآءَ أَوْ يَتُوبَ عَلَيْهِمْ ۚ إِنَّ ٱللَّهَ كَانَ غَفُورًۭا رَّحِيمًۭا
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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