﴿ وَإِذْ أَخَذْنَا مِيثَٰقَكُمْ لَا تَسْفِكُونَ دِمَآءَكُمْ وَلَا تُخْرِجُونَ أَنفُسَكُم مِّن دِيَٰرِكُمْ ثُمَّ أَقْرَرْتُمْ وَأَنتُمْ تَشْهَدُونَ ﴾

“And lo! We accepted your solemn pledge that you would not shed one another's blood, and would not drive one another from your homelands - whereupon you acknowledged it; and thereto you bear witness [even now].”

Please check ayah 2:86 for complete tafsir.