Hadith of the Quran and Sunnah having been said during Muhammad's Farewell Sermon atop Mount Arafat after his Last Pilgrimage.(e.g. Malik Muwatta) Slightly varied versions are cited in many Sunni hadith works. Among those are: John Esposito explains the importance of the Hadith in Islam: "the Prophet Muhammad is seen as the "living Quran," the embodiment of God's will in his behavior and words. Sunni Muslims ... take their name from the "sunnah," meaning those who follow the example of the Prophet". Prof. Fatih Okumus refers to Muhammad as "the walking Qur’an," with the Sunnah giving an example to follow. As the sayings and deeds of
Hadith terminology in and of itself"with the same definition a "ṣaḥīḥ hadith" except that the competence of one of its narrators is less than complete; while a "hadith" that is "ḥasan ligharihi" ("ḥasan due to external factors") is determined to be "ḥasan" due to corroborating factors such as numerous chains of narration. He states that it is then comparable to a "ṣaḥīḥ hadith" in its religious authority. A "ḥasan hadith" may rise to the level of being "ṣaḥīḥ" if it is supported by numerous "isnād" (chains of narration); in this case that "hadith" would be "ḥasan lithatihi" (""ḥasan" in and of itself")