2 verses have
“foolishness”
in Edition Clear Qur'an by Talal Itani / Al-A'raaf (The Heights)
7:66The elite of his people who disbelieved said, “We see foolishness in you, and we think that you are a liar.”
7:67He said, “O my people! There is no foolishness in me, but I am a messenger from the Lord of the Worlds.
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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