The word(s) "foolishness" appears 3 time(s) in 3 verse(s) in Quran in Mohsin Khan translation.

(1) Allah accepts only the repentance of those who do evil in ignorance and foolishness and repent soon afterwards; it is they whom Allah will forgive and Allah is Ever All-Knower, All-Wise.

(سورة النساء, An-Nisaa, Chapter #4, Verse #17)
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(2) The leaders of those who disbelieved among his people said: "Verily, we see you in foolishness, and verily, we think you are one of the liars."

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #66)
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(3) (Hud) said: "O my people! There is no foolishness in me, but (I am) a Messenger from the Lord of the 'Alamin (mankind, jinn and all that exists)!

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #67)
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