And fight them until there is no fitnah and [until] the religion, (8:39)

Almuntakhab Fi Tafsir Alquran Alkarim

So conditioned, then, fight against them the good fight of faith until persecution comes to an end and concord replaces discord and Allahs system of faith and worship prevails, and people take upon themselves: The recognition of Allah and His control of destiny, His rightful claim to obedience, reverence and worship, and the general mental and moral attitude resulting from this belief and its effect upon the individual and the people at large. If they desist and turn to Allah, He certainly is Bassirun(graceful and kind to his servants), He sees all that they do

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

(8:39) And fight against them until the mischief ends and the way prescribed by Allah - the whole of it -prevail *31 Then, if they give up mischief, surely Allah sees what they do.

And fight them until there is no fitnah and [until] the religion, meaning

*31). This is a reiteration of the purpose, mentioned earlier in al-Baqarah 2: 193, for which Muslims are required to wage war. The purpose is two-fold. Negatively speaking, the purpose is to eradicate 'mischief'. The positive purpose consists of establishing a state of affairs wherein all obedience is rendered to God alone. This alone is the purpose for which the believers may, rather should, fight. Fighting for any other purpose is not lawful. Nor does it behove men of faith to take part in wars for worldly purposes. (For further explanation see Towards Understanding the Qur'an, vol. 1, al-Baqarah 2, nn.. 204 and 205, pp. 152-3 - Ed.)
 

And fight them until there is no fitnah and [until] the religion, meaning in Urdu

اے ایمان لانے والو، ان کافروں سے جنگ کرو یہاں تک کہ فتنہ باقی نہ رہے اور دین پورا کا پورا اللہ کے لیے ہو جائے پھر اگر وہ فتنہ سے رُک جائیں تو ان کے اعمال کا دیکھنے والا اللہ ہے