3:7
هُوَ ٱلَّذِىٓ أَنزَلَ عَلَيْ كَ ٱلْ كِتَٰبَ مِنْ هُ ءَايَٰتٌ مُّحْكَمَٰتٌ هُنَّ أُمُّ ٱلْ كِتَٰبِ وَ أُخَرُ مُتَشَٰبِهَٰتٌ فَ أَمَّا ٱلَّذِينَ فِى قُلُوبِ هِمْ زَيْغٌ فَ يَتَّبِعُ ونَ مَا تَشَٰبَهَ مِنْ هُ ٱبْتِغَآءَ ٱلْ فِتْنَةِ وَ ٱبْتِغَآءَ تَأْوِيلِ هِۦ وَ مَا يَعْلَمُ تَأْوِيلَ هُۥٓ إِلَّا ٱللَّهُ وَ ٱل رَّٰسِخُونَ فِى ٱلْ عِلْمِ يَقُولُ ونَ ءَامَ نَّا بِ هِۦ كُلٌّ مِّنْ عِندِ رَبِّ نَا وَ مَا يَذَّكَّرُ إِلَّآ أُو۟لُوا۟ ٱلْ أَلْبَٰبِ
It is He who has sent down to you, [O Muhammad], the Book; in it are verses [that are] precise - they are the foundation of the Book - and others unspecific. 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 Allah. 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.
4:162
لَّٰكِنِ ٱل رَّٰسِخُونَ فِى ٱلْ عِلْمِ مِنْ هُمْ وَ ٱلْ مُؤْمِنُونَ يُؤْمِنُ ونَ بِ مَآ أُنزِلَ إِلَيْ كَ وَ مَآ أُنزِلَ مِن قَبْلِ كَ وَ ٱلْ مُقِيمِينَ ٱل صَّلَوٰةَ وَ ٱلْ مُؤْتُونَ ٱل زَّكَوٰةَ وَ ٱلْ مُؤْمِنُونَ بِ ٱللَّهِ وَ ٱلْ يَوْمِ ٱلْ ءَاخِرِ أُو۟لَٰٓئِكَ سَ نُؤْتِي هِمْ أَجْرًا عَظِيمًا
But those firm in knowledge among them and the believers believe in what has been revealed to you, [O Muhammad], and what was revealed before you. And the establishers of prayer [especially] and the givers of zakah and the believers in Allah and the Last Day - those We will give a great reward.