If one says at the grave: “O Allah, I ask You by the owner of this grave to do so-and-so for me”; is this considered shirk (associating partners with Allah)?

Question:
He says: Honorable Shaykh, may Allah grant you success. If a person goes to the grave of a righteous man and says, yes, yes. He says: Honorable Shaykh, may Allah grant you success. If a person goes to the grave of a righteous man and says, “O Allah, I ask You by the owner of this grave to do so-and-so and so-and-so for me,” is this considered major shirk (associating partners with Allah) or minor shirk?

Answer:
This is tawassul (seeking nearness to Allah through a means) to Allah through the dead person. This is not permissible; this is a bid'ah (religious innovation). But if he slaughters an animal for the dead person or makes a vow for the dead person, or calls upon the dead person for aid, then this is major shirk. But if he says, “I ask You by so-and-so, this dead person,” this is an innovated tawassul and it is not shirk. If he calls upon Allah and seeks nearness to Him through the dead person, this is a bid'ah. But if he calls upon the dead person himself, seeks aid from him, slaughters for him, or makes a vow for him, then this is major shirk. Yes.