Question:
Why is it not allowed to dye hair black? May i please have an answer in detail.
Answer:
It is mentioned in a Hadīth that the Nabī of Allah Sallallahu Alaihi Wasallam told Abū Quḥāfah when he saw that his hair had turned white that, “Change the colour of this hair but do not use black dye.” (Muslim Vol. 3 Pg. 1663)