2 verses have
“Aunque”
in Edition Julio Cortes / Al-Israa (The Night Journey)
17:50Di: «Aunque seáis piedra, hierro
17:88Di: «Si los hombres y los genios se unieran para producir un Corán como éste, no podrían conseguirlo, aunque se ayudaran mutuamente».
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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