Is there any obligation on one who kills a person while defending himself?

The Shaykh : I mean... because, of course, you are reporting from him and according to what he told you, but we do not know the truth; none knows it but Allah (Mighty and Majestic). What we heard clearly is that if the man did not kill the one who wanted to kill him... the killer becomes a victim. And in the Sunnah, in many hadiths, it is stated that if a Muslim is attacked by a person who wants to kill him, he must defend himself. If he cannot, and he kills him, then the victim is in the Fire because he intended to kill his companion. And if the opposite is the case, meaning the one who was attacked actually killed, then the victim is in Paradise and the killer is in the Fire. So the story we heard appears to show that if the man did not kill, he became a victim. So if he defended himself and killed the one who wanted to kill him, then there is nothing in this, praise be to Allah.

The questioner : And then this man embraced Islam with true Islam, praise be to Allah, and now his place is with the da'wah.
Another questioner: He was ordinary.

The questioner : He was ordinary, and less than ordinary.
Another questioner: He was a mushrik (one who associates partners with Allah)...

The questioner : ... .

The Shaykh : I mean, he gave charity with his money. What is the ruling on this charity before the killing? The scope of giving charity is wide, every hour, every minute, but it has no connection to this incident, as long as he was going to be, I mean, the victim.

The questioner : ... .

The Shaykh : If the divine decree descends, it blinds the sight.

The questioner : Does he have no blood money?

The Shaykh : He has no blood money.

The questioner : It is not a right that he be imprisoned.
Another questioner: From the Sharia'ah perspective, he is not imprisoned.

The Shaykh : And this is the ruling of the law.