2 verses have
“Zweifel”
in Edition A. S. F. Bubenheim and N. Elyas / Ad-Dukhaan (The Smoke)
44:9Aber nein! Sie sind im Zweifel und treiben ihr Spiel.
44:50"Das ist (es) ja, worüber ihr zu zweifeln pflegtet."
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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