Is the application of qisas (retaliation in kind) against a deliberate murderer considered a declaration of his disbelief?

The questioner:
He says: Honorable Shaykh, may Allah grant you success, is the application of qisas (retaliation in kind) against a deliberate murderer considered a declaration of his disbelief for killing the victim?

The Shaykh:
This is the right of the awliya (close friends of Allah) of the blood, and they have taken it. As for the right of the victim, it remains upon him until he and the victim meet with the Most Wise of judges. Qisas (retaliation in kind), diyah (blood money), and forgiveness are the right of the awliya (close friends of Allah) of the blood.

The questioner:
He also asks: Should the murderer, if he has killed someone, surrender himself, or is repentance sufficient for him?

The Shaykh:
No, he must surrender himself; because this is the right of a created being, and repentance is not sufficient for it. He must surrender himself to the competent authority to have qisas (retaliation in kind) taken from him if they demand it.