2 verses have
“ولئن”
in Edition Simple Clean / Aal-i-Imraan (The Family of Imraan)
157:3ولئن قتلتم في سبيل الله أو متم لمغفرة من الله ورحمة خير مما يجمعون
158:3ولئن متم أو قتلتم لإلى الله تحشرون
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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