9:8
كَيْفَ وَإِن يَظْهَرُوا عَلَيْكُمْ لاَ يَرْقُبُواْ فِيكُمْ إِلاًّ وَلاَ ذِمَّةً يُرْضُونَكُم بِأَفْوَاهِهِمْ وَتَأْبَى قُلُوبُهُمْ وَأَكْثَرُهُمْ فَاسِقُونَ
How (can there be such a league), seeing that if they get an advantage over you, they respect not in you the ties either of kinship or of covenant? With (fair words from) their mouths they entice you, but their hearts are averse from you; and most of them are rebellious and wicked.
9:10
لاَ يَرْقُبُونَ فِي مُؤْمِنٍ إِلاًّ وَلاَ ذِمَّةً وَأُوْلَـئِكَ هُمُ الْمُعْتَدُونَ
In a Believer they respect not the ties either of kinship or of covenant! It is they who have transgressed all bounds.
35:18
وَلَا تَزِرُ وَازِرَةٌ وِزْرَ أُخْرَى وَإِن تَدْعُ مُثْقَلَةٌ إِلَى حِمْلِهَا لَا يُحْمَلْ مِنْهُ شَيْءٌ وَلَوْ كَانَ ذَا قُرْبَى إِنَّمَا تُنذِرُ الَّذِينَ يَخْشَوْنَ رَبَّهُم بِالغَيْبِ وَأَقَامُوا الصَّلَاةَ وَمَن تَزَكَّى فَإِنَّمَا يَتَزَكَّى لِنَفْسِهِ وَإِلَى اللَّهِ الْمَصِيرُ
Nor can a bearer of burdens bear another's burdens if one heavily laden should call another to (bear) his load. Not the least portion of it can be carried (by the other). Even though he be nearly related. Thou canst but admonish such as fear their Lord unseen and establish regular Prayer. And whoever purifies himself does so for the benefit of his own soul; and the destination (of all) is to Allah.
47:22
فَهَلْ عَسَيْتُمْ إِن تَوَلَّيْتُمْ أَن تُفْسِدُوا فِي الْأَرْضِ وَتُقَطِّعُوا أَرْحَامَكُمْ
Then, is it to be expected of you, if ye were put in authority, that ye will do mischief in the land, and break your ties of kith and kin?