﴿ إِنَّ ٱلَّذِينَ كَفَرُوا۟ مِنْ أَهْلِ ٱلْكِتَٰبِ وَٱلْمُشْرِكِينَ فِى نَارِ جَهَنَّمَ خَٰلِدِينَ فِيهَآ ۚ أُو۟لَٰٓئِكَ هُمْ شَرُّ ٱلْبَرِيَّةِ ﴾

“Verily, those who [despite all evidence] are bent on denying the truth - [be they] from among the followers of earlier revelation or from among those who ascribe divinity to aught beside God - will find themselves in the fire of hell, therein to abide: they are the worst of all creatures.”

The true religion of God is that according to which man should pray to and worship the one and only God; he should love and admire God from the bottom of his heart; he should consistently say his prayers and pay zakat (prescribed alms-giving). This is the real religion which comes from God. The best of all are those who adopt this correct religion and the worst are those who do not do so, or who devise another religion instead of the proper one and call the new religion the true religion.