Read and reflect on verse 3691 from Surah Faatir: And [know that] all of the divine writ with which We have inspired thee is the very truth, confirming the truth of whatever there still remains of ear...
وَالَّذِي أَوْحَيْنَا إِلَيْكَ مِنَ الْكِتَابِ هُوَ الْحَقُّ مُصَدِّقًا لِمَا بَيْنَ يَدَيْهِ ۗ إِنَّ اللَّهَ بِعِبَادِهِ لَخَبِيرٌ بَصِيرٌ
And [know that] all of the divine writ with which We have inspired thee is the very truth, confirming the truth of whatever there still remains of earlier revelations for, behold, of [the needs of] His servants God is fully aware, all-seeing.