1 verse has
“وتطمئن”
in Edition Simple Clean / Ar-Ra'd (The Thunder)
28:13الذين آمنوا وتطمئن قلوبهم بذكر الله ۗ ألا بذكر الله تطمئن القلوب
Support Ayat Al Quran
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