O you who have believed, if you obey those who disbelieve, they (3:149)

Almuntakhab Fi Tafsir Alquran Alkarim

O you who have conformed to Islam do not falter by consequence of misfortunes in battle nor lend an ear to the infidels who deny Allah. For if you open your hearts, ears to them, they shall be able to turn you renegades and you will relapse into infidelity and come to be great losers

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

(3:149) Believers! If you follow those who deny the Truth, they will drive you back on your heels, *108 and you will turn about, losers.

O you who have believed, if you obey those who disbelieve, they meaning

*108). That is, they would push them back into the same state of unbelief from which they had extricated themselves. Since the Battle of Uhud the hypocrites and the Jews had constantly propagated the idea that, had Muhammad been a true Prophet, he would not have suffered the reverse that he encountered in that battle. This reverse was offered as proof that Muhammad (peace be on him) was an ordinary person whose fortunes varied, like those of other men, between victory and defeat. They further contended that the support and patronage of God which Muhammad claimed to enjoy was a sham.
 

O you who have believed, if you obey those who disbelieve, they meaning in Urdu

اے لوگو جو ایمان لائے ہو، اگر تم اُن لوگوں کے اشاروں پر چلو گے جنہوں نے کفر کی راہ اختیار کی ہے تو وہ تم کو الٹا پھیر لے جائیں گے اور تم نامراد ہو جاؤ گے