﴿ بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَتَّخِذُوا۟ عَدُوِّى وَعَدُوَّكُمْ أَوْلِيَآءَ تُلْقُونَ إِلَيْهِم بِٱلْمَوَدَّةِ وَقَدْ كَفَرُوا۟ بِمَا جَآءَكُم مِّنَ ٱلْحَقِّ يُخْرِجُونَ ٱلرَّسُولَ وَإِيَّاكُمْ ۙ أَن تُؤْمِنُوا۟ بِٱللَّهِ رَبِّكُمْ إِن كُنتُمْ خَرَجْتُمْ جِهَٰدًۭا فِى سَبِيلِى وَٱبْتِغَآءَ مَرْضَاتِى ۚ تُسِرُّونَ إِلَيْهِم بِٱلْمَوَدَّةِ وَأَنَا۠ أَعْلَمُ بِمَآ أَخْفَيْتُمْ وَمَآ أَعْلَنتُمْ ۚ وَمَن يَفْعَلْهُ مِنكُمْ فَقَدْ ضَلَّ سَوَآءَ ٱلسَّبِيلِ ﴾

“O YOU who have attained to faith! Do not take My enemies - who are your enemies as well - for your friends, showing them affection even though they are bent on denying whatever truth has come unto you, [and even though] they have driven the Apostle and yourselves away, [only] because you believe in God, your Sustainer! If [it be true that] you have gone forth [from your homes] to strive in My cause, and out of a longing for My goodly acceptance, [do not take them for your friends,] inclining towards them in secret affection: for I am fully aware of all that you may conceal as well as of all that you do openly. And any of you who does this has already strayed from the right path.”

When the Prophet Muhammad decided to proceed against Makkah, he made his plans very quietly so that the Makkans should have no advance warning. At that time a Badri Companion, Hatib ibn ‘Ali Balta‘a, secretly wrote to the Makkans about the plan in a letter and sent it covertly in the name of some Makkans, so that the Makkans would be grateful to him and in return they would refrain from inflicting harm upon his family members who were staying in Makkah. But this betrayal became known through Revelation and the messenger was caught on the way. Every such action is against the demand of Faith.