Surat Az-Zumar (The Groups) - الزمر

أَلَا لِلَّهِ ٱلدِّينُ ٱلْخَالِصُ وَٱلَّذِينَ ٱتَّخَذُوا۟ مِن دُونِهِۦٓ أَوْلِيَآءَ مَا نَعْبُدُهُمْ إِلَّا لِيُقَرِّبُونَآ إِلَى ٱللَّهِ زُلْفَىٰٓ إِنَّ ٱللَّهَ يَحْكُمُ بَيْنَهُمْ فِى مَا هُمْ فِيهِ يَخْتَلِفُونَ إِنَّ ٱللَّهَ لَا يَهْدِى مَنْ هُوَ كَٰذِبٌ كَفَّارٌ ﴿٣﴾

Now, surely, sincere obedience is due to Allah (alone) and (as for) those who take guardians besides Him, (saying), We do not serve them save that they may make us nearer to Allah, surely Allah will judge between them in that in which they differ; surely Allah does not guide him aright who is a liar, ungrateful.