1 verse has
“المتكلفين”
in Edition Simple Clean / Saad (The letter Saad)
86:38قل ما أسألكم عليه من أجر وما أنا من المتكلفين
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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