Is it permissible to give charity and dedicate its reward to a girl who was wronged and oppressed, and to supplicate for her in her absence after her marriage and without her knowledge or any contact with her?

It is permissible to give charity on behalf of a woman and to dedicate the reward of the charity to her. Al-Hajawi said in Al-Iqna': "Every act of worship performed by a Muslim, and its reward, or part of it, such as half, or similar, is dedicated to a Muslim, alive or dead, it is permissible, and benefits him by the attainment of the reward." It is also permissible to supplicate for her, as the Prophet, peace and blessings be upon him, said: "Whoever supplicates for his brother in his absence, the angel assigned to him says: Amen, and likewise for you."