24:43
أَ لَمْ تَرَ أَنَّ ٱللَّهَ يُزْجِى سَحَابًا ثُمَّ يُؤَلِّفُ بَيْنَ هُۥ ثُمَّ يَجْعَلُ هُۥ رُكَامًا فَ تَرَى ٱلْ وَدْقَ يَخْرُجُ مِنْ خِلَٰلِ هِۦ وَ يُنَزِّلُ مِنَ ٱل سَّمَآءِ مِن جِبَالٍ فِي هَا مِنۢ بَرَدٍ فَ يُصِيبُ بِ هِۦ مَن يَشَآءُ وَ يَصْرِفُ هُۥ عَن مَّن يَشَآءُ يَكَادُ سَنَا بَرْقِ هِۦ يَذْهَبُ بِ ٱلْ أَبْصَٰرِ
Do you not see that Allah 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 lightening almost takes away the eyesight.
3:103
وَ ٱعْتَصِمُ وا۟ بِ حَبْلِ ٱللَّهِ جَمِيعًا وَ لَا تَفَرَّقُ وا۟ وَ ٱذْكُرُ وا۟ نِعْمَتَ ٱللَّهِ عَلَيْ كُمْ إِذْ كُن تُمْ أَعْدَآءً فَ أَلَّفَ بَيْنَ قُلُوبِ كُمْ فَ أَصْبَحْ تُم بِ نِعْمَتِ هِۦٓ إِخْوَٰنًا وَ كُن تُمْ عَلَىٰ شَفَا حُفْرَةٍ مِّنَ ٱل نَّارِ فَ أَنقَذَ كُم مِّنْ هَا كَ ذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَ كُمْ ءَايَٰتِ هِۦ لَعَلَّ كُمْ تَهْتَدُ ونَ
And hold firmly to the rope of Allah all together and do not become divided. And remember the favor of Allah upon you - when you were enemies and He brought your hearts together and you became, by His favor, brothers. And you were on the edge of a pit of the Fire, and He saved you from it. Thus does Allah make clear to you His verses that you may be guided.
8:63
وَ أَلَّفَ بَيْنَ قُلُوبِ هِمْ لَوْ أَنفَقْ تَ مَا فِى ٱلْ أَرْضِ جَمِيعًا مَّآ أَلَّفْ تَ بَيْنَ قُلُوبِ هِمْ وَ لَٰكِنَّ ٱللَّهَ أَلَّفَ بَيْنَ هُمْ إِنَّ هُۥ عَزِيزٌ حَكِيمٌ
And brought together their hearts. If you had spent all that is in the earth, you could not have brought their hearts together; but Allah brought them together. Indeed, He is Exalted in Might and Wise.
9:60
إِنَّ مَا ٱل صَّدَقَٰتُ لِ لْ فُقَرَآءِ وَ ٱلْ مَسَٰكِينِ وَ ٱلْ عَٰمِلِينَ عَلَيْ هَا وَ ٱلْ مُؤَلَّفَةِ قُلُوبُ هُمْ وَ فِى ٱل رِّقَابِ وَ ٱلْ غَٰرِمِينَ وَ فِى سَبِيلِ ٱللَّهِ وَ ٱبْنِ ٱل سَّبِيلِ فَرِيضَةً مِّنَ ٱللَّهِ وَ ٱللَّهُ عَلِيمٌ حَكِيمٌ
Zakah expenditures are only for the poor and for the needy and for those employed to collect [zakah] and for bringing hearts together [for Islam] and for freeing captives [or slaves] and for those in debt and for the cause of Allah and for the [stranded] traveler - an obligation [imposed] by Allah. And Allah is Knowing and Wise.