Anas bin Malik reported,

A man brought to the Messenger of Allah ﷺ the killer of his relative.The Prophet ﷺ said, "Pardon him."But the man refused.The Prophet ﷺ said, "Then take the blood-money."He refused again.The Prophet ﷺ said, "Go and kill him, for you will be just like him."So the man set off, and someone caught up with him and said, "The Messenger of Allah ﷺ said, 'Kill him, for you will be just like him.'" So he let him go.The man then passed by me dragging his rope behind him.

Nasai 4734

Sahih

أخبرنا عيسى بن يونس قال حدثنا ضمرة عن عبد الله بن شوذب عن ثابت البناني

عن أنس بن مالك

أن رجلا أتى بقاتل وليه رسول الله ﷺ فقال النبي ﷺ اعف عنه فأبى فقال خذ الدية فأبى قال اذهب فاقتله فإنك مثله فذهب فلحق الرجل فقيل له إن رسول الله ﷺ قال اقتله فإنك مثله فخلى سبيله فمر بي الرجل وهو يجر نسعته

النسائي 4734صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Sworn testimony
Chapter
Disagreement among narrators of the hadith of Alqama bin Waail regarding this
Numbering
Darussalam 4734
Nasai 4734