هُوَ ٱلَّذِىٓ أَنزَلَ عَلَيْكَ ٱلْكِتَـٰبَ مِنْهُ ءَايَـٰتٌ مُّحْكَمَـٰتٌ هُنَّ أُمُّ ٱلْكِتَـٰبِ وَأُخَرُ مُتَشَـٰبِهَـٰتٌ ۖ فَأَمَّا ٱلَّذِينَ فِى قُلُوبِهِمْ زَيْغٌ فَيَتَّبِعُونَ مَا تَشَـٰبَهَ مِنْهُ ٱبْتِغَآءَ ٱلْفِتْنَةِ وَٱبْتِغَآءَ تَأْوِيلِهِۦ ۗ وَمَا يَعْلَمُ تَأْوِيلَهُۥٓ إِلَّا ٱللَّهُ ۗ وَٱلرَّٰسِخُونَ فِى ٱلْعِلْمِ يَقُولُونَ ءَامَنَّا بِهِۦ كُلٌّ مِّنْ عِندِ رَبِّنَا ۗ وَمَا يَذَّكَّرُ إِلَّآ أُو۟لُوا۟ ٱلْأَلْبَـٰبِ

It is He who has sent down to you, [O Muḥammad], the Book; in it are verses [that are] precise - they are the foundation of the Book - and others unspecific.1 As for those in whose hearts is deviation [from truth], they will follow that of it which is unspecific, seeking discord and seeking an interpretation [suitable to them]. And no one knows its [true] interpretation except Allāh. But those firm in knowledge say, "We believe in it. All [of it] is from our Lord." And no one will be reminded except those of understanding.

Ali 'Imran 7

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَتَّخِذُوا۟ بِطَانَةً مِّن دُونِكُمْ لَا يَأْلُونَكُمْ خَبَالًا وَدُّوا۟ مَا عَنِتُّمْ قَدْ بَدَتِ ٱلْبَغْضَآءُ مِنْ أَفْوَٰهِهِمْ وَمَا تُخْفِى صُدُورُهُمْ أَكْبَرُ ۚ قَدْ بَيَّنَّا لَكُمُ ٱلْـَٔايَـٰتِ ۖ إِن كُنتُمْ تَعْقِلُونَ

O you who have believed, do not take as intimates those other than yourselves [i.e., believers], for they will not spare you [any] ruin. They wish you would have hardship. Hatred has already appeared from their mouths, and what their breasts conceal is greater. We have certainly made clear to you the signs, if you will use reason.

Ali 'Imran 118

هَـٰٓأَنتُمْ هَـٰٓؤُلَآءِ حَـٰجَجْتُمْ فِيمَا لَكُم بِهِۦ عِلْمٌ فَلِمَ تُحَآجُّونَ فِيمَا لَيْسَ لَكُم بِهِۦ عِلْمٌ ۚ وَٱللَّهُ يَعْلَمُ وَأَنتُمْ لَا تَعْلَمُونَ

Here you are - those who have argued about that of which you have [some] knowledge, but why do you argue about that of which you have no knowledge? And Allāh knows, while you know not.

Ali 'Imran 66

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَتَّخِذُوا۟ ٱلَّذِينَ ٱتَّخَذُوا۟ دِينَكُمْ هُزُوًا وَلَعِبًا مِّنَ ٱلَّذِينَ أُوتُوا۟ ٱلْكِتَـٰبَ مِن قَبْلِكُمْ وَٱلْكُفَّارَ أَوْلِيَآءَ ۚ وَٱتَّقُوا۟ ٱللَّهَ إِن كُنتُم مُّؤْمِنِينَ

O you who have believed, take not those who have taken your religion in ridicule and amusement among the ones who were given the Scripture before you nor the disbelievers as allies. And fear Allāh, if you should [truly] be believers.

Al-Ma'idah 57

قُل لَّا يَسْتَوِى ٱلْخَبِيثُ وَٱلطَّيِّبُ وَلَوْ أَعْجَبَكَ كَثْرَةُ ٱلْخَبِيثِ ۚ فَٱتَّقُوا۟ ٱللَّهَ يَـٰٓأُو۟لِى ٱلْأَلْبَـٰبِ لَعَلَّكُمْ تُفْلِحُونَ

Say, "Not equal are the evil and the good, although the abundance of evil might impress you." So fear Allāh, O you of understanding, that you may be successful.

Al-Ma'idah 100