Sahih Muslim is a collection of sayings and deeds of Prophet Muhammad (pbuh)(also known as the sunnah). The reports of the Prophets sayings and deeds are called ahadith. Muslim lived a couple of centuries after the Prophet's death and worked extremely hard to collect his ahadith. Each report in his collection was checked for compatibility with the Quran, and the veracity of the chain of reporters had to be painstakingly established. Muslims collection is recognized by the overwhelming majority of the Muslim world to be one of the most authentic collections of the Sunnah of the Prophet (pbuh). Muslim (full name Abul Husain Muslim bin al-Hajjaj al-Nisapuri) was born in 202 AH and died in 261 AH He travelled widely to gather his collection of ahadith, including to Iraq, Saudi Arabia, Syria, and Egypt.