Narrated Abu Sa`id Al-Khudri and Abu Huraira: The Prophet (peace be upon him) said, “No fatigue, nor disease, nor sorrow, nor sadness, nor hurt, nor distress befalls a Muslim, even if it were the prick he receives from a thorn, but that Allah expiates some of his sins for that.” (Sahih al-Bukhari, Vol. 7, Book 75, Hadith 2)
