I asked Ibn ʿAmr bin Al-As, "Tell me of the worst thing which the pagans did to the Prophet." He said, "While the Prophet ﷺ was praying in the Hijr of the Kaʿba; ʿUqba bin Abi Mu'ait came and put his garment around the Prophet's neck and throttled him violently. Abu Bakr came and caught him by his shoulder and pushed him away from the Prophet ﷺ and said, "Do you want to kill a man just because he says, 'My Lord is Allah?' "
أَخْبِرْنِي بِأَشَدِّ شَىْءٍ صَنَعَهُ الْمُشْرِكُونَ بِالنَّبِيِّ ﷺ قَالَ بَيْنَا النَّبِيُّ ﷺ يُصَلِّي فِي حِجْرِ الْكَعْبَةِ إِذْ أَقْبَلَ عُقْبَةُ بْنُ أَبِي مُعَيْطٍ فَوَضَعَ ثَوْبَهُ فِي عُنُقِهِ فَخَنَقَهُ خَنْقًا شَدِيدًا فَأَقْبَلَ أَبُو بَكْرٍ حَتَّى أَخَذَ بِمَنْكِبِهِ وَدَفَعَهُ عَنِ النَّبِيِّ ﷺ قَالَ {أَتَقْتُلُونَ رَجُلاً أَنْ يَقُولَ رَبِّيَ اللَّهُ} الآيَةَ