1 verse has
“worum”
in Edition A. S. F. Bubenheim and N. Elyas / An-Najm (The Star)
53:39und daß es für den Menschen nichts anderes geben wird als das, worum er sich (selbst) bemüht,
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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