Concept:Among the six major Hadith compilers, one is known to have lost his sight in his final years.
Explanation:Imam al-Tirmidhi travelled widely to collect Hadith and authored important works.
According to scholars, he became blind during the last two years of his life.
His blindness was linked to excessive weeping caused by deep fear of Allah or grief over the death of Ahmad ibn Hanbal's generation, particularly al-Bukhari.
The other compilers, such as Nasa'i, Abu Da'ud, and Ibn Maja, are not recorded as having become blind before death.
Answer:D. Tirmidhi