2 verses have
“behind”
in Edition Clear Qur'an by Talal Itani / Aal-i-Imraan (The Family of Imraan)
3:168Those who said of their brethren, as they stayed behind, “Had they obeyed us, they would not have been killed.” Say, “Then avert death from yourselves, if you are truthful.”
3:187God received a pledge from those who were given the Scripture: “You shall proclaim it to the people, and not conceal it.” But they disregarded it behind their backs, and exchanged it for a small price. What a miserable exchange they made.
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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