The ruling on one who is informed that his action is shirk (associating partners with Allah) and then continues with it

Question:
A man is present at the graves, and he was informed that that is shirk (associating partners with Allah), but he did not find us. He continued in his state. So let him be aware that a man said a lie at the graves, and he displayed that that means facing shirk (associating partners with Allah), but he did not find that he continued in his state. So is he aware or not?

Answer:
There is no doubt that if it is conveyed to him that this is shirk (associating partners with Allah) and he does not stop, he is protected by his disbelief, because he has become one who deals with that, not out of ignorance. The matter did not come about out of ignorance, because the proof has been established against him. If the proof is established, he is protected by his disbelief, because slaughtering for other than Allah is another shirk (associating partners with Allah). Slaughtering is worship, and worship is not permissible to direct to anyone but Allah (Mighty and Majestic). However, if he is in a land where there is Islamic authority, his case is referred to the authority to take action against him, either he repents or he lies. And if he is in a land where there is no Islamic authority, it is sufficient that the proof is established against him.