What does « Rskh » mean in the Quran?

Discover the meaning of the word Rskh (رسخ) in the Quran, with 2 verses in which it appears, and a detailed explanation from Al-Raghib al-Asfahani's Mufradat fi gharib al-Qur'an.

رسخ

Rskh

Root: ر - س - خ

Jurisprudence (fiqh) 2 verses

Updated on 29 May 2026 at 7:00 AM

📖 1 min read

Definition of Rskh

Rusûkh al-shay': firm stability of something.

Rasakha al-shay' yarsukhu: the thing became firmly established.

Allah says: 'Those firmly rooted (al-râsikhûn) in knowledge' (Âl 'Imrân: 7).

Those whose knowledge is deep and stable.

Rskh in the Quran (2)

Meccan: 0 Medinan: 2

Distribution of verses by surah

Âl 'Imrân 1

An-Nisa 1

Surah Âl 'Imrân : 7 Medinan

﴿هُوَ ٱلَّذِىٓ أَنزَلَ عَلَيْكَ ٱلْكِتَٰبَ مِنْهُ ءَايَٰتٌ مُّحْكَمَٰتٌ هُنَّ أُمُّ ٱلْكِتَٰبِ وَأُخَرُ مُتَشَٰبِهَٰتٌ فَأَمَّا ٱلَّذِينَ فِى قُلُوبِهِمْ زَيْغٌ فَيَتَّبِعُونَ مَا تَشَٰبَهَ مِنْهُ ٱبْتِغَآءَ ٱلْفِتْنَةِ وَٱبْتِغَآءَ تَأْوِيلِهِۦ وَمَا يَعْلَمُ تَأْوِيلَهُۥٓ إِلَّا ٱللَّهُ وَٱلرَّٰسِخُونَ فِى ٱلْعِلْمِ يَقُولُونَ ءَامَنَّا بِهِۦ كُلٌّ مِّنْ عِندِ رَبِّنَا وَمَا يَذَّكَّرُ إِلَّآ أُو۟لُوا۟ ٱلْأَلْبَٰبِ﴾

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.

Surah An-Nisa : 162 Medinan

﴿لَّٰكِنِ ٱلرَّٰسِخُونَ فِى ٱلْعِلْمِ مِنْهُمْ وَٱلْمُؤْمِنُونَ يُؤْمِنُونَ بِمَآ أُنزِلَ إِلَيْكَ وَمَآ أُنزِلَ مِن قَبْلِكَ وَٱلْمُقِيمِينَ ٱلصَّلَوٰةَ وَٱلْمُؤْتُونَ ٱلزَّكَوٰةَ وَٱلْمُؤْمِنُونَ بِٱللَّهِ وَٱلْيَوْمِ ٱلْءَاخِرِ أُو۟لَٰٓئِكَ سَنُؤْتِيهِمْ 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.