The Muslims Grey Hair
The Messenger of Allah (sal Allahu alaihi wa sallam) said: “Do not pluck out grey hairs, for they will be light on the Day of Resurrection. If a man’s hair turns grey in Islam, for each grey hair he will have one Hasanah (reward) and will rise one degree in status.” [Narrated by Ibn Hibbaan. Al-Albaani said in Silsilat al-Ahadith as-Sahihah (3/247), its Isnaad is HHasan]
Another hadith…
The Messenger (sal Allahu alaihi wa sallam) said, “Grey hair is the light of a Muslim (on the Day of Resurrection). No Muslim turns grey in Islam but for every grey hair he will receive one reward and his status will be raised by one degree .”
[Al-Baihaqi – Classed as Sahih by Sh al-Albaani in Silsilat al- Ahaadeeth al-Saheehah (1243)]
Commentary:
Grey hairs will be light for the Muslim on the Day of Resurrection, as is stated many authentic Hadith (such as the above Hadith)
Some of the other ahadith are as follows:
The Messenger of Allah (sal Allahu alaihi wa sallam) said: “If a person’s hair turns grey in Islam, it will be light for him on the Day of Resurrection.” [Classed as Sahih by Sh al-Albaani in at-Tirmidhi]
The Messenger of Allah (sal Allahu alaihi wa sallam) said: “If a person’s hair turns grey for the sake of Allah, it will be light for him on the Day of Resurrection.” [Classed as Sahih by Sh al-Albaani in at-Tirmidhi]
The Messenger of Allah (sal Allahu alaihi wa sallam) said: “Do not pluck out grey hairs, for they will be light on the Day of Resurrection. If a man’s hair turns grey in Islam, for each grey hair he will have one Hasanah (reward) and will rise one degree in status.” [Narrated by Ibn Hibbaan. Al-Albaani said in Silsilat al-Ahadith as-Sahihah (3/247), its Isnaad is HHasan]
The Messenger of Allah (sal Allahu alaihi wa sallam) said: “Grey hair is light on the face of the Muslim. Do you really want to take away your light.” [Silsilat al-Ahadith as-Sahihah (1244)]
These ahadith clearly state that grey hairs will be light for you on the Day of Resurrection under the condition: you go grey in Islam (i.e practising and implementing Islam) in your life.
These ahadith also indicate that it is makrooh (disliked) to pluck out grey hairs from the head and the beard, and there is no difference between them in this ruling, because of the general meaning of these ahadith, they do not apply only to the hair of the head or beard, so it is known that the ruling applies to both.
As for dyeing grey hairs, this is Sunnah and is part of the teachings of Islam. It means dyeing grey hairs on the head and in the beard, for men. For women, it refers to the hair of the head.
And Allah knows best!