2 verses have
“Gewißheit”
in Edition A. S. F. Bubenheim and N. Elyas / Al-Hijr (The Rock)
15:64Und wir kommen zu dir mit der Gewißheit, und wir sagen gewiß Wahrheit.
15:99und diene deinem Herrn, bis die Gewißheit zu dir kommt.
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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