1 verse has
“تكن”
in Edition Simple Clean / Al-Qalam (The Pen)
48:68فاصبر لحكم ربك ولا تكن كصاحب الحوت إذ نادى وهو مكظوم
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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