For whom is the prostration in this verse, and how is it performed? (And on the day they raised their parents upon the throne and they prostrated to him)

Question:
He also says: The Truth, Blessed and Exalted is He, and when Is the prostration to the parents in this verse for Yusuf, or to the parents, or to Allah the Mighty and Majestic? And how is that prostration? May Allah reward you with good.

Answer:
This refers to the vision that Yusuf (peace be upon him) saw, in which he saw the throne from a prostration, which he related to his father .
And after a period, and after the trials and tribulations that occurred had ceased, Allah enabled Yusuf (peace be upon him) in the land, and he became the king of Egypt. He brought his parents and his brothers, and they entered his council, and they prostrated to him in prostration of greeting. This is not prostration of worship, but rather prostration of greeting, like the prostration of the angels to Adam (peace be upon him). It is not prostration of worship, because prostration of worship is not permissible except for Allah, Glorified and Exalted is He. Rather, it is prostration of greeting, and this is permissible in their law. Yes.
As for in our law, prostration to anyone is not permissible, neither as greeting nor as worship. Just as bowing to anyone during prayer is not permissible, because this is bowing (ruku'), and bowing is not permissible, neither bowing of greeting nor bowing of worship. Rather, bowing is for Allah, Glorified and Exalted is He. The result is that this prostration is of greeting, and it is permissible in their law, but it is not permissible in our law. And Allah, Glorified and Exalted is He, prescribes for His servants what He wills in every time according to their capacity. Yes.