فَأَقِمۡ وَجۡهَكَ لِلدِّينِ حَنِيفٗاۚ فِطۡرَتَ ٱللَّهِ ٱلَّتِي فَطَرَ ٱلنَّاسَ عَلَيۡهَاۚ لَا تَبۡدِيلَ لِخَلۡقِ ٱللَّهِۚ ذَٰلِكَ ٱلدِّينُ ٱلۡقَيِّمُ وَلَٰكِنَّ أَكۡثَرَ ٱلنَّاسِ لَا يَعۡلَمُونَ
So set you (O Muhammad SAW) your face towards the religion of pure Islamic Monotheism Hanifa (worship none but Allah Alone) Allah's Fitrah (i.e. Allah's Islamic Monotheism), with which He has created mankind. No change let there be in Khalq-illah (i.e. the Religion of Allah Islamic Monotheism), that is the straight religion, but most of men know not. [Tafsir At-Tabari, Vol 21, Page 41]
۞مُنِيبِينَ إِلَيۡهِ وَٱتَّقُوهُ وَأَقِيمُواْ ٱلصَّلَوٰةَ وَلَا تَكُونُواْ مِنَ ٱلۡمُشۡرِكِينَ
(Always) Turning in repentance to Him (only), and be afraid and dutiful to Him; and perform As-Salat (Iqamat-as-Salat) and be not of Al-Mushrikun (the disbelievers in the Oneness of Allah, polytheists, idolaters, etc.).
مِنَ ٱلَّذِينَ فَرَّقُواْ دِينَهُمۡ وَكَانُواْ شِيَعٗاۖ كُلُّ حِزۡبِۭ بِمَا لَدَيۡهِمۡ فَرِحُونَ
Of those who split up their religion (i.e. who left the true Islamic Monotheism), and became sects, [i.e. they invented new things in the religion (Bid'ah), and followed their vain desires], each sect rejoicing in that which is with it.
وَإِذَا مَسَّ ٱلنَّاسَ ضُرّٞ دَعَوۡاْ رَبَّهُم مُّنِيبِينَ إِلَيۡهِ ثُمَّ إِذَآ أَذَاقَهُم مِّنۡهُ رَحۡمَةً إِذَا فَرِيقٞ مِّنۡهُم بِرَبِّهِمۡ يُشۡرِكُونَ
And when harm touches men, they cry sincerely only to their Lord (Allah), turning to Him in repentance, but when He gives them a taste of His Mercy, behold! a party of them associate partners in worship with their Lord.