Messenger of Allah ﷺ sent me, Az-Zubair and Al-Miqdad saying, "Proceed till you reach Rawdat Khakh where there is a lady carrying a letter, and take that (letter) from her." So we proceeded on our way with our horses galloping till we reached the Rawda, and there we found the lady and said to her, "Take out the letter." She said, "I have no letter." We said, "Take out the letter, or else we will take off your clothes." So she took it out of her braid, and we brought the letter to Messenger of Allah ﷺ . The letter was addressed from Hatib, bin Abi Balta'a to some pagans of Mecca, telling them about what Allah's Apostle intended to do. Messenger of Allah ﷺ said, "O Hatib! What is this?" Hatib replied, "O Allah's Apostle! Do not make a hasty decision about me. I was a person not belonging to Quraish but I was an ally to them from outside and had no blood relation with them, and all the Emigrants who were with you, have got their kinsmen (in Mecca) who can protect their families and properties. So I liked to do them a favor so that they might protect my relatives as I have no blood relation with them. I did not do this to renegade from my religion (i.e. Islam) nor did I do it to choose Heathenism after Islam." Messenger of Allah ﷺ said to his companions." As regards him, he (i.e. Hatib) has told you the truth." ʿUmar said, "O Messenger of Allah ﷺ! Allow me to chop off the head of this hypocrite!" The Prophet ﷺ said, "He (i.e. Hatib) has witnessed the Badr battle (i.e. fought in it) and what could tell you, perhaps Allah looked at those who witnessed Badr and said, "O the people of Badr (i.e. Badr Muslim warriors), do what you like, for I have forgiven you. "Then Allah revealed the Sura:-- "O you who believe! Take not my enemies And your enemies as friends offering them (Your) love even though they have disbelieved in that Truth (i.e. Allah, Prophet Muhammad and this Qur'an) which has come to you ....(to the end of Verse)....(And whosoever of you (Muslims) does that, then indeed he has gone (far) astray (away) from the Straight Path." (60.1  

سَمِعْتُ عَلِيًّا ؓ يَقُولُ بَعَثَنِي رَسُولُ اللَّهِ ﷺ أَنَا وَالزُّبَيْرَ وَالْمِقْدَادَ فَقَالَ انْطَلِقُوا حَتَّى تَأْتُوا رَوْضَةَ خَاخٍ فَإِنَّ بِهَا ظَعِينَةً مَعَهَا كِتَابٌ فَخُذُوا مِنْهَا قَالَ فَانْطَلَقْنَا تَعَادَى بِنَا خَيْلُنَا حَتَّى أَتَيْنَا الرَّوْضَةَ فَإِذَا نَحْنُ بِالظَّعِينَةِ قُلْنَا لَهَا أَخْرِجِي الْكِتَابَ قَالَتْ مَا مَعِي كِتَابٌ فَقُلْنَا لَتُخْرِجِنَّ الْكِتَابَ أَوْ لَنُلْقِيَنَّ الثِّيَابَ قَالَ فَأَخْرَجَتْهُ مِنْ عِقَاصِهَا فَأَتَيْنَا بِهِ رَسُولَ اللَّهِ ﷺ فَإِذَا فِيهِ مِنْ حَاطِبِ بْنِ أَبِي بَلْتَعَةَ إِلَى نَاسٍ بِمَكَّةَ مِنَ الْمُشْرِكِينَ يُخْبِرُهُمْ بِبَعْضِ أَمْرِ رَسُولِ اللَّهِ ﷺ فَقَالَ رَسُولُ اللَّهِ ﷺ يَا حَاطِبُ مَا هَذَا قَالَ يَا رَسُولَ اللَّهِ لاَ تَعْجَلْ عَلَىَّ إِنِّي كُنْتُ امْرَأً مُلْصَقًا فِي قُرَيْشٍ يَقُولُ كُنْتُ حَلِيفًا وَلَمْ أَكُنْ مِنْ أَنْفُسِهَا وَكَانَ مَنْ مَعَكَ مِنَ الْمُهَاجِرِينَ مَنْ لَهُمْ قَرَابَاتٌ يَحْمُونَ أَهْلِيهِمْ وَأَمْوَالَهُمْ فَأَحْبَبْتُ إِذْ فَاتَنِي ذَلِكَ مِنَ النَّسَبِ فِيهِمْ أَنْ أَتَّخِذَ عِنْدَهُمْ يَدًا يَحْمُونَ قَرَابَتِي وَلَمْ أَفْعَلْهُ ارْتِدَادًا عَنْ دِينِي وَلاَ رِضًا بِالْكُفْرِ بَعْدَ الإِسْلاَمِ فَقَالَ رَسُولُ اللَّهِ ﷺ أَمَا إِنَّهُ قَدْ صَدَقَكُمْ فَقَالَ عُمَرُ يَا رَسُولَ اللَّهِ دَعْنِي أَضْرِبْ عُنُقَ هَذَا الْمُنَافِقِ فَقَالَ إِنَّهُ قَدْ شَهِدَ بَدْرًا وَمَا يُدْرِيكَ لَعَلَّ اللَّهَ اطَّلَعَ عَلَى مَنْ شَهِدَ بَدْرًا قَالَ اعْمَلُوا مَا شِئْتُمْ فَقَدْ غَفَرْتُ لَكُمْ فَأَنْزَلَ اللَّهُ السُّورَةَ {يَا أَيُّهَا الَّذِينَ آمَنُوا لاَ تَتَّخِذُوا عَدُوِّي وَعَدُوَّكُمْ أَوْلِيَاءَ تُلْقُونَ إِلَيْهِمْ بِالْمَوَدَّةِ} إِلَى قَوْلِهِ {فَقَدْ ضَلَّ سَوَاءَ السَّبِيلِ }