I say, and with God's help: The wiping over the bandage is not invalidated by wetting what is underneath it, as is the case with the khuff; because it is not a condition that prevents water from penetrating. Refer to: Maraqi al-Falah and the commentary of al-Tahawi on it, pages 136-137, and Umdah al-Ri'ayah 1: 119, and God knows best.