Hazrat Sha'bi and Ibrahim state that every action of the guardian is permissible except for marriage.

16981 - (W) (1) From al-Hakam and Hammad from Ibrahim (they said) (2): Whatever the executor does is permissible except marriage.

Hasan did not allow a guardian by will (wasi) to give permission for marriage, except if the one appointing the wasi says, "You are the guardian (wasi) for the marriages of my sisters and my daughters." If he does so, then the wasi is more entitled than the wali (legal guardian) in the matter of marriage. If this is not said, then the wali is more entitled than the wasi.

Hazrat Sha'bi says that if a man marries by claiming to be free, but later it is revealed that he is a slave, then the woman will have the choice.

Hasan says that if a man marries by claiming to be free, but later it turns out that he is a slave, then the woman will have the choice.

Hazrat Zuhri was asked: If a woman is deceived regarding a slave, and she believed him to be free while he was actually a slave, what is the ruling? He replied: The woman will have the choice.

Hazrat Amr narrates that Hazrat Jabir bin Zaid was asked: If a slave comes to a people and tells them that he is free, and they marry him to a free woman, and later they find out that he was a slave and the woman was deceived, what should be done? Hazrat Jabir replied: When she comes to know, she has the choice to stay with him if she wishes, or to separate from him if she wishes. The man will have no right over the woman.

Hazrat Sha'bi says that if a man married by claiming to be free, but was later found to be a slave, then the woman will have the choice to remain with him or to separate from him.

Hazrat Tawus says that if a person marries a woman, that woman does not become lawful for his father, whether he has had marital relations with her or not. And similarly, she does not become lawful for his son, whether he has had marital relations with her or not.

Hazrat Zuhri says that if a person marries a woman, that woman becomes forbidden for his son and father. Similarly, if either of the two sees the private part of a woman, she also becomes forbidden for the other.