1 verse has
“solemnemente”
in Edition Julio Cortes / Al-Maaida (The Table)
5:53Los creyentes dirán «Son éstos los que juraban solemnemente por Alá que sí, que estaban con vosotros? Sus obras serán vanas y saldrán perdiendo».
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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