1 verse has
“backed”
in Edition Clear Qur'an by Talal Itani / Al-Israa (The Night Journey)
17:88Say, “If mankind and jinn came together to produce the like of this Quran, they could never produce the like of it, even if they backed up one another.”
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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