The jurisprudential principle of Ta'lif al-Qulub-which refers to winning hearts and affirming faith through allocating a share of zakat-plays a significant role in fostering social and cultural bonds. Rooted in verse 60 of Surah al-Tawbah and various narrations, this principle was employed by the Prophet of Islam and the infallible Imams to promote cooperation and reinforce Islamic unity. A historical review reveals that Ta'lif al-Qulub has served as a vital tool in spreading Islamic culture and strengthening socio-cultural ties between Muslims and non-Muslims. It holds great potential as an effective instrument in Islamic cultural diplomacy and foreign policy. By promoting collaboration and support from other nations and peoples through constructive engagement, this principle can contribute to stronger diplomatic relationships. Nevertheless, its implementation faces jurisprudential and legal challenges, including diverse interpretations and potential contradictions. To enhance the practical application of this principle, recommendations such as drafting specific laws and regulations, establishing specialized institutions, and promoting international cooperation are proposed. The findings of this study indicate that the jurisprudential principle of Ta'lif al-Qulub has multifaceted capacities. It can be used as an effective means to strengthen international relations and positive inter-community interactions, promote shared human values, reinforce national and religious identity, and foster peace and peaceful coexistence. Utilizing this principle may help reduce cultural and social tensions and increase constructive engagement.