"And they have a charge against me," meaning: they have against me; that is: the Copt whom he killed by mistake when he struck him.
﴿وَلَهُم عَليّ ذَنْب﴾ أَيْ: وَلَهُمْ عِنْدِي؛ يَعْنِي: الْقِبْطِيَّ الَّذِي قَتَلَهُ خَطَأً حَيْثُ وَكَزَهُ،