Is it permissible during wudu' to put on the sock on the right foot before washing the left foot?

Question:
A man told me that it is not permissible during wudu' to put on the sock on the right foot before washing the left foot. I read in a book a long time ago about this topic—I do not recall the name of the book—that there is a difference of opinion, and that the stronger view among the scholars is that it is not permissible. What is your opinion? May Allah reward you with good.

Answer:
Yes, that is the case. One does not put on the socks or leather socks (khuffayn) until the ritual purity is complete, if he intends to wipe over them. If he intends to wipe over them, he does not put them on until the ritual purity is complete. This is one of the conditions for the validity of the wiping, as the Messenger of Allah (peace and blessings be upon him) said when al-Mughirah ibn Shu'bah (may Allah be pleased with him) wanted to remove the Prophet's (peace and blessings be upon him) leather socks while he was performing wudu' to wash them: "Leave them, for I put them on in a state of purity." His (peace and blessings be upon him) statement, "I put them on in a state of purity," indicates that one of the conditions for the validity of the wiping is that they be put on after the ritual purity is complete.
As for if he does not intend to wipe over them, there is no harm in putting them on even if he has not washed the other foot.