I say, and with God's success: The water that a person who is in a state of minor ritual impurity uses for ablution without intention becomes used water, and it becomes pure but does not purify from the minor ritual impurity. It is permissible to remove actual impurity from clothing and the body with it, but it is not permissible to perform ablution or bathing with it; because the water becomes used as soon as it is used to remove the minor ritual impurity, whether it is with the intention of removing the impurity or without any intention at all. Refer to: Sharh al-Wiqayah p. 99, al-Hidayah 1: 20, Nur al-Iydah p. 23, and al-Sayah 1: 396-397, and God knows best.