1 verse has
“sincere”
in Edition Clear Qur'an by Talal Itani / Ghafir (The Forgiver)
40:14So call upon God, with sincere devotion to Him, even though the disbelievers resent it.
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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