Narrated Abdullah ibn Abbas: The Prophet ﷺ said: At the end of time there will be people who will use this black dye like the crops of doves who will not experience the fragrance of Paradise.
The hadith also teaches us about being mindful about our actions and how they can affect our future in both this world and the hereafter. We must always strive to make sure that we are living a life full of good deeds so that we can reap its rewards in both worlds. We must also remember that even small acts such as using black dye have consequences on our spiritual journey towards Jannah or Heaven.