Quran english an nahl 126

وإن عاقبتم فعاقبوا بمثل ما عوقبتم به ولئن صبرتم لهو خير للصابرين

Wa-in AAaqabtum faAAaqiboobimithli ma AAooqibtum bihi wala-in sabartum lahuwakhayrun lissabireen

 
Sahih International
And if you punish [an enemy, O believers], punish with an equivalent of that with which you were harmed. But if you are patient - it is better for those who are patient.
Muhsin Khan
And if you punish (your enemy, O you believers in the Oneness of Allah), then punish them with the like of that with which you were afflicted. But if you endure patiently, verily, it is better for As-Sabirin (the patient ones, etc.).
Pickthall
If ye punish, then punish with the like of that wherewith ye were afflicted. But if ye endure patiently, verily it is better for the patient.
Yusuf Ali
And if ye do catch them out, catch them out no worse than they catch you out: But if ye show patience, that is indeed the best (course) for those who are patient.
Shakir
And if you take your turn, then retaliate with the like of that with which you were afflicted; but if you are patient, it will certainly be best for those who are patient.
Dr. Ghali
And in case you (This is addressed to all believers) punish, then punish with the like of that wherewith you were punished; and indeed in case you endure patiently, indeed it is more charitable of the patient.