Combining two great matters in a single question: they are shirk (associating partners with Allah) and sihr (sorcery), and he asks about the ruling on each of them?

Question:
May Allah reward you with good, and may He do you good. You have combined two great matters in a single question, Shaykh Salih: they are shirk and sihr, and he asks about the ruling on each. May Allah reward you with good.

Answer:
Shirk is something Allah, Glorified and Exalted is He, has forbidden in many verses, and He has informed us that He does not forgive the mushrik (one who associates partners with Allah), . So the danger of shirk is immense. First, it corrupts the creed, so the person ends up with no creed, and he becomes with the mushrikin and with the kafirun (disbelievers).
Second, Allah does not forgive it, even though Allah (Glorified and Exalted is He) is vast in His forgiveness; however, the one who associates partners with Allah does not enter into the mercy of Allah. This indicates the severity of shirk (associating partners with Allah) before Allah (Mighty and Majestic). All the messengers came with the command to practice tawhid (the oneness of Allah) and the prohibition of shirk. , and He (Glorified and Exalted is He) said: The danger of shirk is immense because it does not coexist with tawhid. If it is major shirk, it does not coexist with tawhid; rather, it invalidates tawhid. As for minor shirk, it diminishes tawhid in an apparent way, and it may lead one to major shirk.
In any case, shirk (associating partners with Allah) in all its forms is of great danger, and its evil is widespread. For this reason, Allah has threatened it with the most severe warning: , indeed Allah has forbidden Paradise for him, and his abode is the Fire, and there are no helpers for the wrongdoers. Yes. May Allah reward you with good, yes, yes.
As for sihr, it is also devoid of shirk. For this reason, the Prophet (peace and blessings be upon him) counted it among shirk in the list of the seven destructive sins. The error of sihr is immense because it is from the teaching of Shaytan (Satan), and because the sahir (sorcerer) submits to Shaytan in what he wants from him of kufr (disbelief) and shirk with Allah, Mighty and Majestic. And because the sahir harms the children of Adam, harms the Muslims, and corrupts societies, its danger is immense for the creed and for the people. For this reason, the ruling on the sahir is that he is killed and not asked to repent. If it is established that he is a sahir by his confession or by the testimony of witnesses against him, he is killed and not asked to repent. The Prophet (peace and blessings be upon him) said: . The Companions (may Allah be pleased with them) killed the sorcerers, so 'Umar ibn al-Khattab wrote to his governors to kill every male and female sorcerer. The narrator said: "So we killed three sorceresses." And Hafsa, the mother of the believers (may Allah be pleased with her), killed a slave girl who had bewitched her. And Jurayb ibn Ka'b (may Allah have mercy on him) killed the sorcerer in the presence of the Caliph, which indicates that the sorcerer is hastened to be killed to provide relief.