Al-Qasas - 28:53

وَإِذَا يُتْلَى عَلَيْهِمْ قَالُوا آمَنَّا بِهِ إِنَّهُ الْحَقُّ مِن رَّبِّنَا إِنَّا كُنَّا مِن قَبْلِهِ مُسْلِمِينَ
[28:53]
And when it is recited to them they say: We believe in it surely it is the truth from our Lord; surely we were submitters before this.
And when it is recited to them, they say: "We believe therein, for it is the Truth from our Lord: indeed we have been Muslims (bowing to Allah's Will) from before this.
And when it is recited unto them, they say: We believe in it. Lo! it is the Truth from our Lord. Lo! even before it we were of those who surrender (unto Him).