Diniyar Kumar

s, such as biographies (sira), records of the sayings and
doings of the Prophet (hadith) and commentaries on the
Quran (tafsir). The material from which these works were
produced was a large collection of eyewitness reports (akhbar)
transmitted over a period of time either orally or on paper.
The authenticity of each report (khabar) was tested by a
critical method which traced the chain of transmission (isnad)
and established the reliability of the narrator. Although the
method was not foolproof, medieval Muslim writers were more
careful in selecting their information and understanding the
motives of their informants than were their contemporaries
in other parts of the world. On controversial issues, they
reproduced different versions of the same event, as they found
in their sources, leaving the task of judgement to their
readers. Their description of events closer to their own times
is more systematic and analytical and less of a collection of
akhbar. Most of the chronicles and semi-historical works