Al A'raf, 134 Ayah
7:134
وَلَمَّا وَقَعَ عَلَيۡهِمُ ٱلرِّجۡزُ قَالُواْ يَٰمُوسَى ٱدۡعُ لَنَا رَبَّكَ بِمَا عَهِدَ عِندَكَۖ لَئِن كَشَفۡتَ عَنَّا ٱلرِّجۡزَ لَنُؤۡمِنَنَّ لَكَ وَلَنُرۡسِلَنَّ مَعَكَ بَنِيٓ إِسۡرَٰٓءِيلَ ١٣٤
Wa Lammā Waqa`a `Alayhimu Ar-Rijzu Qālū Yā Mūsá Ad`u Lanā Rabbaka Bimā `Ahida `Indaka ۖ La'in Kashafta `Annā Ar-Rijza Lanu'uminanna Laka Wa Lanursilanna Ma`aka Banī 'Isrā'īla
And when the punishment descended upon them, they said, "O Moses, invoke for us your Lord by what He has promised you. If you [can] remove the punishment from us, we will surely believe you, and we will send with you the Children of Israel."