1 verse has
“keras”
in Edition Unknown / Qaaf (The letter Qaaf)
50:24Allah berfirman: "Lemparkanlah olehmu berdua ke dalam neraka semua orang yang sangat ingkar dan keras kepala,
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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