Dyeing hair that has no gray with black, or with a color that involves imitating non-Muslims, and does it prevent wudu?

Question:
May Allah reward you. A listener from the Abyan Governorate in Yemen has several questions. In the first, he asks: Is it permissible to dye, or rather, is it permissible for us to dye with black dye over hair dye? And does it prevent wudu? And does it prevent wudu?

Answer:
First, changing the color of the hair is not permissible except in the case of gray hair. Gray hair is changed, but not with pure black. The Messenger of Allah (peace and blessings be upon him) said, "Change this gray hair, and change this gray hair, and avoid black." So it is changed without black, such as with henna and katam, or other colors that are not pure black. As for hair that is not gray, it is not changed, because there is no need to change it, as it is in its beautiful natural state, black as Allah created it. So there is no need to change it, because some people change their color to be like the color of the non-Muslim women. This is imitation. In the name of Allah, the Most Merciful, the Most Compassionate. This is imitating the disbelieving women. This is from the aspect of changing the color, and there is a distinction in it. As for the aspect of placing something on the head that prevents water from reaching the head during wudu and ghusl: if this substance solidifies and water does not penetrate it or reach the hair, then it is not permissible, because it prevents the water from reaching, just as if this substance solidifies on top of the head and water does not pass through it, then it is not permissible, because it prevents purity. However, if the dye that is permitted by the Shari'ah does not prevent water, such as henna and katam and the types that change gray hair and do not prevent water, then there is no harm in it.