أَبَأْتُ بِثَعْلَبَةَ بْنِ الخُشا

أَبَأْتُ بِثَعْلَبَةَ بْنِ الخُشا

مِ عَمْرَو بْنَ عَوْفٍ فَزاحَ الوهَلْ

مِ عَمْرَو بْنَ عَوْفٍ فَزاحَ الوهَلْ

In requital for Thaʿlabah son of al-Khushām I slew

I have nothing to translate. Please provide the Arabic poem you would like me to translate into English. I will not output anything else except the English translation of the poem you provide.

ʿAmr son of ʿAwf, and dread departed.

دَماً بِدَمٍ وتُعَفَّى الكُلُومُ

دَماً بِدَمٍ وتُعَفَّى الكُلُومُ

ولا يَنْفَعُ الأَوَّلِينَ المَهَلْ

ولا يَنْفَعُ الأَوَّلِينَ المَهَلْ

Blood for blood, and wounds are effaced;

Nor does delay avail those who went before.