Do not pluck out grey hair. If any believer grows a grey hair in Islam, he will have light on the Day of Resurrection. (This is Sufyan's version). Yahya's version says: Allah will record on his behalf a good deed for it, and will blot out a sin for it.

قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَنْتِفُوا الشَّيْبَ مَا مِنْ مُسْلِمٍ يَشِيبُ شَيْبَةً فِي الإِسْلاَمِ قَالَ عَنْ سُفْيَانَ إِلاَّ كَانَتْ لَهُ نُورًا يَوْمَ الْقِيَامَةِ وَقَالَ فِي حَدِيثِ يَحْيَى إِلاَّ كَتَبَ اللَّهُ لَهُ بِهَا حَسَنَةً وَحَطَّ عَنْهُ بِهَا خَطِيئَةً

[Machine] The Messenger of Allah ﷺ said: "Do not pluck out gray hair, for it is the light of a Muslim. Whoever has gray hair in Islam, Allah will write for him a good deed for every strand of gray hair, and He will erase a sin for him with it, and He will raise him in status with it."

أَنَّ رَسُولَ اللهِ ﷺ قَالَ لَا تَنْتِفُوا الشَّيْبَ فَإِنَّهُ نُورُ الْمُسْلِمِ مَنْ شَابَ شَيْبَةً فِي الْإِسْلَامِ كَتَبَ اللهُ لَهُ بِهَا حَسَنَةً وَكَفَّرَ عَنْهُ بِهَا خَطِيئَةً وَرَفَعَهُ بِهَا دَرَجَةً

[Machine] The Messenger of Allah ﷺ said, "Do not pluck out gray hair, as it is a light for the Muslim. Every Muslim who has a gray hair in Islam, a good deed is recorded for him because of it, and he will be elevated in rank or a sin will be removed from him because of it."

قَالَ رَسُولُ اللهِ ﷺ لَا تَنْتِفُوا الشَّيْبَ فَإِنَّهُ نُورُ الْمُسْلِمِ مَا مِنْ مُسْلِمٍ يَشِيبُ شَيْبَةً فِي الْإِسْلَامِ إِلَّا كُتِبَ لَهُبِهَا حَسَنَةٌ وَرُفِعَ بِهَا دَرَجَةً أَوْ حُطَّ عَنْهُ بِهَا خَطِيئَةٌ

[Machine] The Prophet Muhammad ﷺ said, "Do not pluck out gray hair, as it will be a light on the Day of Judgment. And whoever has gray hair in Islam, good deeds will be written for him because of it, and his sins will be forgiven through it, and he will be elevated in rank because of it."

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «لَا تَنْتِفُوا الشَّيْبَ فَإِنَّهُ نُورٌ يَوْمَ الْقِيَامَةِ وَمَنْ شَابَ شَيْبَةً فِي الْإِسْلَامِ كُتِبَ لَهُ بِهَا حَسَنَةٌ وَحُطَّ عَنْهُ بِهَا خَطِيئَةٌ وَرُفِعَ لَهُ بِهَا دَرَجَةٌ»