The root خ ل ل (kh-l-l) in the Quran

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ أَنفِقُوا۟ مِمَّا رَزَقْنَٰكُم مِّن قَبْلِ أَن يَأْتِىَ يَوْمٌ لَّا بَيْعٌ فِيهِ وَلَا خُلَّةٌ وَلَا شَفَٰعَةٌ وَٱلْكَٰفِرُونَ هُمُ ٱلظَّٰلِمُونَ ۝٢٥٤

O you who have believed, spend from that which We have provided for you before there comes a Day in which there is no exchange [i.e., ransom] and no friendship and no intercession. And the disbelievers - they are the wrongdoers.

وَمَنْ أَحْسَنُ دِينًا مِّمَّنْ أَسْلَمَ وَجْهَهُۥ لِلَّهِ وَهُوَ مُحْسِنٌ وَٱتَّبَعَ مِلَّةَ إِبْرَٰهِيمَ حَنِيفًا وَٱتَّخَذَ ٱللَّهُ إِبْرَٰهِيمَ خَلِيلًا ۝١٢٥

And who is better in religion than one who submits himself to Allāh while being a doer of good and follows the religion of Abraham, inclining toward truth? And Allāh took Abraham as an intimate friend.

لَوْ خَرَجُوا۟ فِيكُم مَّا زَادُوكُمْ إِلَّا خَبَالًا وَلَأَوْضَعُوا۟ خِلَٰلَكُمْ يَبْغُونَكُمُ ٱلْفِتْنَةَ وَفِيكُمْ سَمَّٰعُونَ لَهُمْ وَٱللَّهُ عَلِيمٌۢ بِٱلظَّٰلِمِينَ ۝٤٧

Had they gone forth with you, they would not have increased you except in confusion, and they would have been active among you, seeking [to cause] you fitnah [i.e., chaos and dissension]. And among you are avid listeners to them. And Allāh is Knowing of the wrongdoers.

قُل لِّعِبَادِىَ ٱلَّذِينَ ءَامَنُوا۟ يُقِيمُوا۟ ٱلصَّلَوٰةَ وَيُنفِقُوا۟ مِمَّا رَزَقْنَٰهُمْ سِرًّا وَعَلَانِيَةً مِّن قَبْلِ أَن يَأْتِىَ يَوْمٌ لَّا بَيْعٌ فِيهِ وَلَا خِلَٰلٌ ۝٣١

[O Muḥammad], tell My servants who have believed to establish prayer and spend from what We have provided them, secretly and publicly, before a Day comes in which there will be no exchange [i.e., ransom], nor any friendships.

فَإِذَا جَآءَ وَعْدُ أُولَىٰهُمَا بَعَثْنَا عَلَيْكُمْ عِبَادًا لَّنَآ أُو۟لِى بَأْسٍ شَدِيدٍ فَجَاسُوا۟ خِلَٰلَ ٱلدِّيَارِ وَكَانَ وَعْدًا مَّفْعُولًا ۝٥

So when the [time of] promise came for the first of them, We sent against you servants of Ours - those of great military might, and they probed [even] into the homes, and it was a promise fulfilled.

وَإِن كَادُوا۟ لَيَفْتِنُونَكَ عَنِ ٱلَّذِىٓ أَوْحَيْنَآ إِلَيْكَ لِتَفْتَرِىَ عَلَيْنَا غَيْرَهُۥ وَإِذًا لَّٱتَّخَذُوكَ خَلِيلًا ۝٧٣

And indeed, they were about to tempt you away from that which We revealed to you in order to [make] you invent about Us something else; and then they would have taken you as a friend.

أَوْ تَكُونَ لَكَ جَنَّةٌ مِّن نَّخِيلٍ وَعِنَبٍ فَتُفَجِّرَ ٱلْأَنْهَٰرَ خِلَٰلَهَا تَفْجِيرًا ۝٩١

Or [until] you have a garden of palm trees and grapes and make rivers gush forth within them in force [and abundance]

كِلْتَا ٱلْجَنَّتَيْنِ ءَاتَتْ أُكُلَهَا وَلَمْ تَظْلِم مِّنْهُ شَيْـًٔا وَفَجَّرْنَا خِلَٰلَهُمَا نَهَرًا ۝٣٣

Each of the two gardens produced its fruit and did not fall short thereof in anything. And We caused to gush forth within them a river.

أَلَمْ تَرَ أَنَّ ٱللَّهَ يُزْجِى سَحَابًا ثُمَّ يُؤَلِّفُ بَيْنَهُۥ ثُمَّ يَجْعَلُهُۥ رُكَامًا فَتَرَى ٱلْوَدْقَ يَخْرُجُ مِنْ خِلَٰلِهِۦ وَيُنَزِّلُ مِنَ ٱلسَّمَآءِ مِن جِبَالٍ فِيهَا مِنۢ بَرَدٍ فَيُصِيبُ بِهِۦ مَن يَشَآءُ وَيَصْرِفُهُۥ عَن مَّن يَشَآءُ يَكَادُ سَنَا بَرْقِهِۦ يَذْهَبُ بِٱلْأَبْصَٰرِ ۝٤٣

Do you not see that Allāh drives clouds? Then He brings them together; then He makes them into a mass, and you see the rain emerge from within it. And He sends down from the sky, mountains [of clouds] within which is hail, and He strikes with it whom He wills and averts it from whom He wills. The flash of its lightning almost takes away the eyesight.

يَٰوَيْلَتَىٰ لَيْتَنِى لَمْ أَتَّخِذْ فُلَانًا خَلِيلًا ۝٢٨

Oh, woe to me! I wish I had not taken that one as a friend.

أَمَّن جَعَلَ ٱلْأَرْضَ قَرَارًا وَجَعَلَ خِلَٰلَهَآ أَنْهَٰرًا وَجَعَلَ لَهَا رَوَٰسِىَ وَجَعَلَ بَيْنَ ٱلْبَحْرَيْنِ حَاجِزًا أَءِلَٰهٌ مَّعَ ٱللَّهِ بَلْ أَكْثَرُهُمْ لَا يَعْلَمُونَ ۝٦١

Is He [not best] who made the earth a stable ground and placed within it rivers and made for it firmly set mountains and placed between the two seas a barrier? Is there a deity with Allāh? [No], but most of them do not know.

ٱللَّهُ ٱلَّذِى يُرْسِلُ ٱلرِّيَٰحَ فَتُثِيرُ سَحَابًا فَيَبْسُطُهُۥ فِى ٱلسَّمَآءِ كَيْفَ يَشَآءُ وَيَجْعَلُهُۥ كِسَفًا فَتَرَى ٱلْوَدْقَ يَخْرُجُ مِنْ خِلَٰلِهِۦ فَإِذَآ أَصَابَ بِهِۦ مَن يَشَآءُ مِنْ عِبَادِهِۦٓ إِذَا هُمْ يَسْتَبْشِرُونَ ۝٤٨

It is Allāh who sends the winds, and they stir the clouds and spread them in the sky however He wills, and He makes them fragments so you see the rain emerge from within them. And when He causes it to fall upon whom He wills of His servants, immediately they rejoice

ٱلْأَخِلَّآءُ يَوْمَئِذٍۭ بَعْضُهُمْ لِبَعْضٍ عَدُوٌّ إِلَّا ٱلْمُتَّقِينَ ۝٦٧

Close friends, that Day, will be enemies to each other, except for the righteous