Sulaiman IsmailYuslina MohamedZulkipli IsaWan Moharani MohammadMuhammad Marwan Ismail2024-05-282024-05-2820232024-2-6Ismail, S., Mohamed , Y., Isa, Z., Mohammad, W. M., & Ismail, M. M. (2023). The Power Of Interdiscursivity In Foreign Relations And Its Uses In Prophet Muhammad’s Diplomatic Propagation Letters: التفاعل الخطابي ونفوذه في العلاقات الخارجية وأوجه استخدامه في الرسائل الدبلوماسية الدعوية المحمدية. Al-Qanatir: International Journal of Islamic Studies, 32(2), 261–276. Retrieved from https://al-qanatir.com/aq/article/view/8122289-9944https://al-qanatir.com/aq/article/view/812https://oarep.usim.edu.my/handle/123456789/7765Vol. 32 No. 2This research aims to analyze the phenomenon of interdiscursivity in the foreign relations that the Prophet (PBUH) had carried out through his diplomatic letters to the kings and princes and then examine its use in the diplomatic letters sent by the Prophet (PBUH) to them as an invitation to faith and Islam. The research has followed the descriptive analytical approach using the theory of Norman Fairclough in the Critical Discourse Analysis method. Thisresearch also found the success impact ofinterdiscursivity within the lines of his diplomatic letters, that was represented in the aspects of al-uslub al-khabariyy and al-uslub al-insya’iyy, and it also found that the al-uslub al-ibtidaiyy is one of the most frequently mentioned in the Muhammadan letters compared to the al-uslub al-talabiyy and al-inkariyy, because of its special effect of delivering the meanings to the minds of those to whom the letters were sent to, it is also known as speech event in semantic and pragmatics. Meanwhile, the sighat al-amris found to be unique in the al-uslub al-insya’iyy in the Muhammad diplomatic discourse, in line with the nature of the propagation letters, which chooses an effective means of calling for faith and Islam, and the research confirmed the ingenuity of theProphet in using the appropriate interdiscursivity elements to ensure the success of the diplomatic propagation relations.otherInterdiscursivity,Foreign, Diplomatic Propagation Relations, al-Uslub al-Khabariyy, al-Uslub al-Insha’iyy.Article261276322