What is the ruling on dyeing hair black if the original hair color is black, and did Al-Albani issue a fatwa permitting it in this case?

The scholars who deemed dyeing hair black forbidden did not differentiate between whether the dye matched the hair's natural color or not. This is because dyeing hair black typically involves changing its color. In this case, whoever dyes their hair black falls under the warning, even if their hair is already black. However, if dyeing with black does not change the hair color, then it is a futile act and a waste of money.