The Ayah (2:232) also indicates that the woman is not permitted to give herself in marriage. Rather, she requires a Wali (guardian such as her father, brother, adult son, and so forth) to give her away in marriage, as Ibn Jarir and At-Tirmidhi have stated when they mentioned this Ayah. Also, a Hadith states that:

(The woman does not give another woman away for marriage and the woman does not give herself away in marriage, for only the adulteress gives herself away for marriage.)

Another Hadith states:

(No marriage is valid except with the participation of a mature Wali and two trustworthy witnesses.)