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wa-lladhīna kafarū baʿḍuhum ʾawliyāʾu baʿḍin ʾillā tafʿalūhu takun fitnatun fī l-ʾarḍi wa-fasādun kabīrun
As for the faithless, they are heirs of one another. Unless you do the same, there will be strife in the land and great corruption.
— Ali Quli Qarai
Surah Al-Anfal – Verse 73
73 . “And (as for) those who disbelieve, they are friends one of another. If you do not so, there will be confusion in the earth and a greater mischief.”
The meaning of this verse is that Muslims should refrain from being friends of infidels and helping them, though they may be their close relatives. They should leave out their guardianship, too. If you do not do what Allah (s.w.t) has commanded you, there will appear a great confusion and a great mischief in the earth. That is, if you do not settle a relation of brotherhood between yourselves, and some of you do not take one another as guardians, even by inheriting from each other, and do not prefer the connection of Islam to the connection of relationship, nor cut off the communication between you and pagans, you will confront a great confusion and mischief in the earth.
For, as long as Muslims are not untied before infidels, polytheism will remain and pagans will be bold upon Muslims and will call them towards infidelity. The verse says: