2 verses have
“armies”
in Edition Clear Qur'an by Talal Itani / Aal-i-Imraan (The Family of Imraan)
3:155Those of you who turned back on the day when the two armies clashed—it was Satan who caused them to backslide, on account of some of what they have earned. But God has forgiven them. God is Forgiving and Prudent.
3:166What befell you on the day the two armies clashed was with God’s permission; that He may know the believers.
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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