28:52

Al-Qasas 28:52

ٱلَّذِينَ ءَاتَيْنَٰهُمُ ٱلْكِتَٰبَ مِن قَبْلِهِۦ هُم بِهِۦ يُؤْمِنُونَ

Allazeena aatainaahu mul Kitaaba min qablihee hum bihee yu'minoon

Those on whom We bestowed the Book before do believe in this (to wit, the Qur'an).