Surahs that made the Prophets Hair Grey
The Prophet (sal Allahu alaihi wa sallam) said, “(Surah) Hud (11), Al-Waaqi’ah (56), Al-Mursalaat (77), An-Naba’ (78) and At-Takweer (81) have made my hair grey”
[Sunan At-Tirmidhi – Classed as Sahih by Shaykh Al-Albaani]
We benefit from the above Hadith that the Surah’s mentioned by the Prophet (sal Allahu alaihi wa sallam) in the above Hadith made his hair grey because they contained warnings that were very hard upon him (sal Allahu alaihi wa sallam).
And Allah knows best!