1 verse has
“vain”
in Edition Clear Qur'an by Talal Itani / Ghafir (The Forgiver)
40:50They will say, “Did not your messengers come to you with clear signs?” They will say, “Yes.” They will say, “Then pray, but the prayers of the disbelievers will always be in vain.”
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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