Not sure it is incorrect. From an earlier post of mine (node 1078)
"The Prophet Muhammad died in 632 C.E. The earliest material on his life that we possess was written by Ibn Ishaq in 750 C.E., in other words, a hundred twenty years after Muhammad’s death. The question of authenticity becomes even more critical, because the original form of Ibn Ishaq’s work is lost and is only available in parts in a later recension by Ibn Hisham who died in 834 C.E., two hundred years after the death of the Prophet.
The Hadith are a collection of sayings and doings attributed to the Prophet and traced back to him through a series of putatively trustworthy witnesses (any particular chain of transmitters is called an isnad). "
Not sure it is incorrect. From an earlier post of mine (node 1078)
"The Prophet Muhammad died in 632 C.E. The earliest material on his life that we possess was written by Ibn Ishaq in 750 C.E., in other words, a hundred twenty years after Muhammad’s death. The question of authenticity becomes even more critical, because the original form of Ibn Ishaq’s work is lost and is only available in parts in a later recension by Ibn Hisham who died in 834 C.E., two hundred years after the death of the Prophet.
The Hadith are a collection of sayings and doings attributed to the Prophet and traced back to him through a series of putatively trustworthy witnesses (any particular chain of transmitters is called an isnad). "