1 verse has
“دراستهم”
in Edition Simple Clean / Al-An'aam (The Cattle)
156:6أن تقولوا إنما أنزل الكتاب على طائفتين من قبلنا وإن كنا عن دراستهم لغافلين
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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