Kisrā

Kisrā is the Arabic title used in Islamic sources for the rulers of the Sasanian Persian Empire. In the context of the sīrah of Prophet Muḥammad (PBUH), the title refers specifically to Khosrow II Parvīz (r. 590–628 CE), the powerful Sasanian monarch who ruled Persia during the final years of the Prophet’s mission. As sovereign of one of the two great empires of Late Antiquity, Kisrā exercised authority over an extensive realm stretching from Mesopotamia and Persia to parts of Central Asia. His reign coincided with the emergence of Islam in Arabia and the Prophet’s efforts to communicate the message of Islam beyond the Arabian Peninsula.

Following the Treaty of al-Ḥudaybiyyah in 6 AH/628 CE, Prophet Muḥammad ﷺ initiated diplomatic correspondence with several rulers, inviting them to embrace Islam. Among these rulers was Kisrā, to whom the Prophet sent a letter through the Companion ʿAbd Allāh ibn Ḥudhāfah al-Sahmī (RA). The letter called upon the Persian ruler to submit to Allah and accept the message of Islam. According to reports preserved in ḥadīth and sīrah literature, Kisrā reacted with anger when he read the letter and tore it into pieces, objecting that the Prophet’s name had been written before his own. When informed of this response, the Prophet is reported to have said: “May Allah tear apart his kingdom,” a statement that Muslim historians later associated with the downfall of the Sasanian Empire.

The episode acquired further significance when Kisrā ordered Bādhān, the Persian governor of Yemen, to investigate the Prophet and bring him before the imperial court. Before these instructions could be carried out, however, Khosrow II was overthrown and killed by his son Kavadh II. According to Islamic tradition, the Prophet informed Bādhān of Kisrā’s death through divine knowledge before official confirmation reached Arabia. When news subsequently arrived confirming the event, Bādhān and several Persians in Yemen accepted Islam. Muslim scholars regarded this occurrence as a sign of the truthfulness of the Prophet’s mission and an important moment in the spread of Islam beyond Arabia.

The correspondence between the Prophet and Kisrā represents one of the earliest examples of Islamic diplomacy and reflects the universal character of the Prophetic mission. Unlike some rulers who received the Prophet’s invitation respectfully, Kisrā rejected the message and attempted to challenge the authority of the emerging Muslim community. Classical historians viewed the subsequent decline of the Sasanian Empire and its eventual incorporation into the expanding Islamic world as a fulfillment of the Prophet’s supplication and as evidence of the transformative impact of Islam on the political order of the Near East.

Within the sīrah, Kisrā occupies an important place as a representative of one of the great world powers that encountered the message of Islam. His correspondence with the Prophet, his reaction to the invitation, and the consequences that followed illustrate the broader international dimension of the Prophet Muḥammad ﷺ ’s mission and his engagement with the rulers of neighboring civilizations.