The ways of Satan to distinguish between believers in Allah

{إِنَّ رَبَّكَ يَقْضِي بَيْنَهُمْ يَوْمَ الْقِيَامَةِ فِيمَا كَانُوا فِيهِ يَخْتَلِفُونَ} 

:Allah the Exalted said

“Truly  your Lord will decide between them on the day of Judgement in regards to what they use to differ in. “By the wisdom of justice steming from His complete knowledge and His .encompassing power

And This is the disease (differing) that is displayed before the people of sound religion. And that is,  since they make Satan incapable of making them obey him by leaving the religion totally,  he put out much efforts to cause animosity,  enmity,  and hatred between them (the Believers). Then occurs from differing that which necessitate all of that. Next,  is calling each other astray and having enmity between them. Which is pleasing to the cursed Satan

Otherwise their Lord,  Messenger,  and religion is one. Just as their political public interests are the same.  So,  what is the thing they are in difference about that has torn their unity and affairs apart?  What is it that has lead to their goverments and leagues to dissolve causing them to miss out on their worldly and religious interest and benefits, which has lead to the death of many aspects of their religion. We ask you Allah to mend their splitting, and to return those who far away from amongst them to those who are near and close to each other. you (Allah) who possess the qualities of  magnificents and generosity to make that happen

Tafseer Assasdi

Translated by :shakhe zahed with thanks