1 verse has
“رعبا”
in Edition Simple Clean / Al-Kahf (The Cave)
18:18وتحسبهم أيقاظا وهم رقود ۚ ونقلبهم ذات اليمين وذات الشمال ۖ وكلبهم باسط ذراعيه بالوصيد ۚ لو اطلعت عليهم لوليت منهم فرارا ولملئت منهم رعبا
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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