Reference: al-Fataawa al-Ijtimaa’iyyah – Volume 4, Page 36
Majallah al-Buhooth – Volume 27
Question: How authentic are the ahaadeeth in which mention is made about dyeing the beard a black colour, since dyeing the beard black is widespread amongst many of those who claim knowledge [of the Sharee’ah].
Response: In this regard, there are many authentic ahaadeeth, of which the most well known is the hadeeth mentioning the story of the father of (Abu Bakar) as-Siddeeq (radhi-yAllaahu ‘anhu) as transmitted by (Imaam) Muslim in his Saheeh, on the authority of Jaabir ibn ‘Abdullaah (radhi-yAllaahu ‘anhu) that when the Prophet (sal-Allaahu ‘alayhi wa sallam) saw the head (hair) of the father of (Abu Bakar) as-Siddeeq and his beard was like white hyssop, (he then said):
And in a[nother] narration [it mentions]:
And the hadeeth of Ibn ‘Abbaas, as narrated by Imaam Ahmad, Abu Daawood and an-Nasaa.ee with a sound chain of transmission, on the authority of Ibn ‘Abbaas (radhi-yAllaahu ‘anhumaa) that the Prophet (sal-Allaahu ‘alayhi wa sallam) said:
And this is extremely threatening.
And regarding this, there are many other ahaadeeth, all of which indicate the prohibition of dyeing with [the colour] back, and recommending dyeing in other than it.