1 verse has
“while”
in Edition Clear Qur'an by Talal Itani / Ash-Shu'araa (The Poets)
26:202It will come to them suddenly, while they are unaware.
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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