The root خ ص م (kh-ṣ-m) in the Quran

وَمِنَ ٱلنَّاسِ مَن يُعْجِبُكَ قَوْلُهُۥ فِى ٱلْحَيَوٰةِ ٱلدُّنْيَا وَيُشْهِدُ ٱللَّهَ عَلَىٰ مَا فِى قَلْبِهِۦ وَهُوَ أَلَدُّ ٱلْخِصَامِ ۝٢٠٤

And of the people is he whose speech pleases you in worldly life, and he calls Allāh to witness as to what is in his heart, yet he is the fiercest of opponents.

ذَٰلِكَ مِنْ أَنۢبَآءِ ٱلْغَيْبِ نُوحِيهِ إِلَيْكَ وَمَا كُنتَ لَدَيْهِمْ إِذْ يُلْقُونَ أَقْلَٰمَهُمْ أَيُّهُمْ يَكْفُلُ مَرْيَمَ وَمَا كُنتَ لَدَيْهِمْ إِذْ يَخْتَصِمُونَ ۝٤٤

That is from the news of the unseen which We reveal to you, [O Muḥammad]. And you were not with them when they cast their pens as to which of them should be responsible for Mary. Nor were you with them when they disputed.

إِنَّآ أَنزَلْنَآ إِلَيْكَ ٱلْكِتَٰبَ بِٱلْحَقِّ لِتَحْكُمَ بَيْنَ ٱلنَّاسِ بِمَآ أَرَىٰكَ ٱللَّهُ وَلَا تَكُن لِّلْخَآئِنِينَ خَصِيمًا ۝١٠٥

Indeed, We have revealed to you, [O Muḥammad], the Book in truth so you may judge between the people by that which Allāh has shown you. And do not be for the deceitful an advocate.

خَلَقَ ٱلْإِنسَٰنَ مِن نُّطْفَةٍ فَإِذَا هُوَ خَصِيمٌ مُّبِينٌ ۝٤

He created man from a sperm-drop; then at once he is a clear adversary.

هَٰذَانِ خَصْمَانِ ٱخْتَصَمُوا۟ فِى رَبِّهِمْ فَٱلَّذِينَ كَفَرُوا۟ قُطِّعَتْ لَهُمْ ثِيَابٌ مِّن نَّارٍ يُصَبُّ مِن فَوْقِ رُءُوسِهِمُ ٱلْحَمِيمُ ۝١٩

These are two adversaries who have disputed over their Lord. But those who disbelieved will have cut out for them garments of fire. Poured upon their heads will be scalding water

قَالُوا۟ وَهُمْ فِيهَا يَخْتَصِمُونَ ۝٩٦

They will say while they dispute therein,

وَلَقَدْ أَرْسَلْنَآ إِلَىٰ ثَمُودَ أَخَاهُمْ صَٰلِحًا أَنِ ٱعْبُدُوا۟ ٱللَّهَ فَإِذَا هُمْ فَرِيقَانِ يَخْتَصِمُونَ ۝٤٥

And We had certainly sent to Thamūd their brother Ṣāliḥ, [saying], "Worship Allāh," and at once they were two parties conflicting.

مَا يَنظُرُونَ إِلَّا صَيْحَةً وَٰحِدَةً تَأْخُذُهُمْ وَهُمْ يَخِصِّمُونَ ۝٤٩

They do not await except one blast which will seize them while they are disputing.

أَوَلَمْ يَرَ ٱلْإِنسَٰنُ أَنَّا خَلَقْنَٰهُ مِن نُّطْفَةٍ فَإِذَا هُوَ خَصِيمٌ مُّبِينٌ ۝٧٧

Does man not consider that We created him from a [mere] sperm-drop - then at once he is a clear adversary?

وَهَلْ أَتَىٰكَ نَبَؤُا۟ ٱلْخَصْمِ إِذْ تَسَوَّرُوا۟ ٱلْمِحْرَابَ ۝٢١

And has there come to you the news of the adversaries, when they climbed over the wall of [his] prayer chamber -

إِذْ دَخَلُوا۟ عَلَىٰ دَاوُۥدَ فَفَزِعَ مِنْهُمْ قَالُوا۟ لَا تَخَفْ خَصْمَانِ بَغَىٰ بَعْضُنَا عَلَىٰ بَعْضٍ فَٱحْكُم بَيْنَنَا بِٱلْحَقِّ وَلَا تُشْطِطْ وَٱهْدِنَآ إِلَىٰ سَوَآءِ ٱلصِّرَٰطِ ۝٢٢

When they entered upon David and he was alarmed by them? They said, "Fear not. [We are] two adversaries, one of whom has wronged the other, so judge between us with truth and do not exceed [it] and guide us to the sound path.

إِنَّ ذَٰلِكَ لَحَقٌّ تَخَاصُمُ أَهْلِ ٱلنَّارِ ۝٦٤

Indeed, that is truth [i.e., reality] - the quarreling of the people of the Fire.

مَا كَانَ لِىَ مِنْ عِلْمٍۭ بِٱلْمَلَإِ ٱلْأَعْلَىٰٓ إِذْ يَخْتَصِمُونَ ۝٦٩

I had no knowledge of the exalted assembly [of angels] when they were disputing [the creation of Adam].

ثُمَّ إِنَّكُمْ يَوْمَ ٱلْقِيَٰمَةِ عِندَ رَبِّكُمْ تَخْتَصِمُونَ ۝٣١

Then indeed you, on the Day of Resurrection, before your Lord, will dispute.

أَوَمَن يُنَشَّؤُا۟ فِى ٱلْحِلْيَةِ وَهُوَ فِى ٱلْخِصَامِ غَيْرُ مُبِينٍ ۝١٨

So is one brought up in ornaments while being during conflict unevident [attributed to Allāh]?

وَقَالُوٓا۟ ءَأَٰلِهَتُنَا خَيْرٌ أَمْ هُوَ مَا ضَرَبُوهُ لَكَ إِلَّا جَدَلًۢا بَلْ هُمْ قَوْمٌ خَصِمُونَ ۝٥٨

And they said, "Are our gods better, or is he?" They did not present it [i.e., the comparison] except for [mere] argument. But, [in fact], they are a people prone to dispute.

قَالَ لَا تَخْتَصِمُوا۟ لَدَىَّ وَقَدْ قَدَّمْتُ إِلَيْكُم بِٱلْوَعِيدِ ۝٢٨

[Allāh] will say, "Do not dispute before Me, while I had already presented to you the threat [i.e., warning].