2 verses have
“eternamente”
in Edition Julio Cortes / Az-Zukhruf (Ornaments of gold)
43:71Se harán circular entre ellos platos de oro y copas, que contendrán todo lo que cada uno desee, deleite de los ojos. «Estaréis allí eternamente.
43:74Los pecadores, en cambio, tendrán la gehena como castigo, eternamente,
Support Ayat Al Quran
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