The root ن س ك (n-s-k) in the Quran

رَبَّنَا وَٱجْعَلْنَا مُسْلِمَيْنِ لَكَ وَمِن ذُرِّيَّتِنَآ أُمَّةً مُّسْلِمَةً لَّكَ وَأَرِنَا مَنَاسِكَنَا وَتُبْ عَلَيْنَآ إِنَّكَ أَنتَ ٱلتَّوَّابُ ٱلرَّحِيمُ ۝١٢٨

Our Lord, and make us Muslims [in submission] to You and from our descendants a Muslim nation [in submission] to You. And show us our rites [of worship] and accept our repentance. Indeed, You are the Accepting of Repentance, the Merciful.

وَأَتِمُّوا۟ ٱلْحَجَّ وَٱلْعُمْرَةَ لِلَّهِ فَإِنْ أُحْصِرْتُمْ فَمَا ٱسْتَيْسَرَ مِنَ ٱلْهَدْىِ وَلَا تَحْلِقُوا۟ رُءُوسَكُمْ حَتَّىٰ يَبْلُغَ ٱلْهَدْىُ مَحِلَّهُۥ فَمَن كَانَ مِنكُم مَّرِيضًا أَوْ بِهِۦٓ أَذًى مِّن رَّأْسِهِۦ فَفِدْيَةٌ مِّن صِيَامٍ أَوْ صَدَقَةٍ أَوْ نُسُكٍ فَإِذَآ أَمِنتُمْ فَمَن تَمَتَّعَ بِٱلْعُمْرَةِ إِلَى ٱلْحَجِّ فَمَا ٱسْتَيْسَرَ مِنَ ٱلْهَدْىِ فَمَن لَّمْ يَجِدْ فَصِيَامُ ثَلَٰثَةِ أَيَّامٍ فِى ٱلْحَجِّ وَسَبْعَةٍ إِذَا رَجَعْتُمْ تِلْكَ عَشَرَةٌ كَامِلَةٌ ذَٰلِكَ لِمَن لَّمْ يَكُنْ أَهْلُهُۥ حَاضِرِى ٱلْمَسْجِدِ ٱلْحَرَامِ وَٱتَّقُوا۟ ٱللَّهَ وَٱعْلَمُوٓا۟ أَنَّ ٱللَّهَ شَدِيدُ ٱلْعِقَابِ ۝١٩٦

And complete the ḥajj and ʿumrah for Allāh. But if you are prevented, then [offer] what can be obtained with ease of sacrificial animals. And do not shave your heads until the sacrificial animal has reached its place of slaughter. And whoever among you is ill or has an ailment of the head [making shaving necessary must offer] a ransom of fasting [three days] or charity or sacrifice. And when you are secure, then whoever performs ʿumrah [during the ḥajj months] followed by ḥajj [offers] what can be obtained with ease of sacrificial animals. And whoever cannot find [or afford such an animal] - then a fast of three days during ḥajj and of seven when you have returned [home]. Those are ten complete [days]. This is for those whose family is not in the area of al-Masjid al-Ḥarām. And fear Allāh and know that Allāh is severe in penalty.

فَإِذَا قَضَيْتُم مَّنَٰسِكَكُمْ فَٱذْكُرُوا۟ ٱللَّهَ كَذِكْرِكُمْ ءَابَآءَكُمْ أَوْ أَشَدَّ ذِكْرًا فَمِنَ ٱلنَّاسِ مَن يَقُولُ رَبَّنَآ ءَاتِنَا فِى ٱلدُّنْيَا وَمَا لَهُۥ فِى ٱلْـَٔاخِرَةِ مِنْ خَلَٰقٍ ۝٢٠٠

And when you have completed your rites, remember Allāh like your [previous] remembrance of your fathers or with [much] greater remembrance. And among the people is he who says, "Our Lord, give us in this world," and he will have in the Hereafter no share.

قُلْ إِنَّ صَلَاتِى وَنُسُكِى وَمَحْيَاىَ وَمَمَاتِى لِلَّهِ رَبِّ ٱلْعَٰلَمِينَ ۝١٦٢

Say, "Indeed, my prayer, my rites of sacrifice, my living and my dying are for Allāh, Lord of the worlds.

وَلِكُلِّ أُمَّةٍ جَعَلْنَا مَنسَكًا لِّيَذْكُرُوا۟ ٱسْمَ ٱللَّهِ عَلَىٰ مَا رَزَقَهُم مِّنۢ بَهِيمَةِ ٱلْأَنْعَٰمِ فَإِلَٰهُكُمْ إِلَٰهٌ وَٰحِدٌ فَلَهُۥٓ أَسْلِمُوا۟ وَبَشِّرِ ٱلْمُخْبِتِينَ ۝٣٤

And for every [religious] community We have appointed a rite [of sacrifice] that they may mention the name of Allāh over what He has provided for them of [sacrificial] animals. For your god is one God, so to Him submit. And, [O Muḥammad], give good tidings to the humble [before their Lord]

لِّكُلِّ أُمَّةٍ جَعَلْنَا مَنسَكًا هُمْ نَاسِكُوهُ فَلَا يُنَٰزِعُنَّكَ فِى ٱلْأَمْرِ وَٱدْعُ إِلَىٰ رَبِّكَ إِنَّكَ لَعَلَىٰ هُدًى مُّسْتَقِيمٍ ۝٦٧

For every [religious] community We have appointed rites which they perform. So, [O Muḥammad], let them [i.e., the disbelievers] not contend with you over the matter but invite [them] to your Lord. Indeed, you are upon straight guidance.