مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2458
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas (رضي الله عنه) that the Prophet (ﷺ) said: “At the end of time there will be people who dye their hair with this black colour - Husain said: like the crops of pigeons - they will never smell the fragrance of Paradise."
Musnad Ahmad 2470Its isnad is saheeh]