Sīrah literature (biography of the Prophet), inspired as it was by the imposing personality of the Prophet and bearing the marks of the stormy political events of the conquests, of the social changes in the Muslim community and of the struggle of the different factions, came into being in the period following the death of the Prophet. It developed in the first half of the first century of the hijrah, and by the end of that century the first full-length literary compilations were produced. The development of Sīrah literature is closely linked with the transmission of the Ḥadīth and should be viewed in connection with it. Most of the reports about utterances and orders of the Prophet were, during his lifetime, transmitted orally, and few of them seem to have been written down. Although some accounts about the recording of the utterances, deeds and orders dictated by the Prophet to his Companions are dubious and debatable1 and should be examined with caution (and ultimately rejected), some of them seem to deserve trust. The pacts which the Prophet concluded with the different groupings in Medina after his arrival in that city were apparently written down so as to serve as the legal basis for their communal life. His letters to rulers, governors and chiefs of tribes are recorded in some of the compilations of the Sīrah. The Sīrah also contains accounts of pacts concluded between the Prophet and conquered tribes or localities and of grants bestowed upon tribal leaders.