The original text of the
Sīrat Rasūl Allāh by Ibn Ishaq did not survive. Yet it was one of the earliest substantial biographies of Muhammad. However, much of the original text was copied over into a work of his own by
Ibn Hisham (
Basra;
Fustat, died 833 AD, 218 AH). Ibn Hisham also "abbreviated, annotated, and sometimes altered" the text of Ibn Ishaq, according to .
Interpolations made by Ibn Hisham are said to be recognizable and can be deleted, leaving as a remainder, a so-called "
edited" version of Ibn Ishaq's original text (otherwise lost). In addition, points out that Ibn Hisham's version
omits various narratives in the text which were given by
al-Tabari in his
History. In these passages al-Tabari expressly cites Ibn Ishaq as a source. Thus can be reconstructed an 'improved' "
edited" text, i.e., by distinguishing or removing Ibn Hisham's additions, and by adding from al-Tabari passages attributed to Ibn Ishaq. Yet the result's degree of approximation to Ibn Ishaq's original text can only be conjectured. Such a reconstruction is available, e.g., in Guillaume's translation. Here, Ibn Ishaq's introductory chapters describe
pre-Islamic Arabia, before he then commences with the narratives surrounding the life of Muhammad (in ). == Translations ==