2 verses have
“secret”
in Edition Clear Qur'an by Talal Itani / Al-Mulk (The Sovereignty)
67:12As for those who fear their Lord in secret—for them is forgiveness and a great reward.
67:13Whether you keep your words secret, or declare them—He is Aware of the inner thoughts.
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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