That is the guidance of Allah by which He guides whomever He (6:88)

Almuntakhab Fi Tafsir Alquran Alkarim

This is the true accord of Allah - the union of His will and affections - attuned to the spirit of truth guiding whom He will of His servants into all truth. Had they incorporated with Him other deities they would have been denied the prerogative of Prophethood besides the loss incurred. Their hopes would have been doomed to disappointment and their deeds to worthlessness

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(6:88) That is Allah's guidance wherewith He guides those of His servants whom He wills. But if they ever associated others with Allah in His divinity, then all that they had done would have gone to waste. *56

That is the guidance of Allah by which He guides whomever He meaning

*56). Had those people also ascribed partners to God like the people of Arabia, they would not have achieved the positions they had attained.Some might perhaps have earned places in the rogues' gallery of history as either ruthless conquerors or monuments to greed. But had they not shunned polytheism and adhered to their exclusive and unadulterated devotion to God, they would certainly neither have had the honour of becoming the source of light and guidance to others nor of assuming the leadership of the pious and the God-fearing.
 

That is the guidance of Allah by which He guides whomever He meaning in Urdu

یہ اللہ کی ہدایت ہے جس کے ساتھ وہ اپنے بندوں میں سے جس کی چاہتا ہے رہنمائی کرتا ہے لیکن اگر کہیں ان لوگوں نے شرک کیا ہوتا تو ان کا سب کیا کرایا غارت ہو جاتا