وَإِذا يُتلىٰ عَلَيهِم قالوا آمَنّا بِهِ إِنَّهُ الحَقُّ مِن رَبِّنا إِنّا كُنّا مِن قَبلِهِ مُسلِمينَ

When it’s conveyed to them, they assert, “We believe in it; it’s the truth from our Lord. Even before its revelation, we were already Submitters.”