The Messenger of Allah ﷺ said, "In the last days there will be people who dye their hair black like the crops of pigeons. They will not even smell the fragrance of Paradise."
حدثنا أبو توبة حدثنا عبيد الله عن عبد الكريم الجزري عن سعيد بن جبير
قال رسول الله ﷺ يكون قوم يخضبون في آخر الزمان بالسواد كحواصل الحمام لا يريحون رائحة الجنة
[Its isnad is sahih] Nasai narrated it in Zinah, chapter on the prohibition of dyeing with black, hadith no. 5078, from the hadith of Ubaydullah bin Amr Raqqi through this route. Baghawi said, "Abdul-Kareem is Jazari" (Sharh al-Sunnah, 2/12, hadith no. 3180).