The Sanad (chain of transmission) holds a central place in the preservation and authenticity of Hadith in Islamic scholarship. Through this system, the sayings of the Prophet Muhammad (pbuh) were transmitted with precision, verified by reliable narrators, and protected from distortion. The rigorous principles established by Hadith scholars, supported by the science of narrators ('Ilm al-Rijāl), ensured that the words of the Prophet (pbuh) remained intact across generations—making the science of the chain of transmission a unique and unmatched contribution to the world of knowledge. It is worth mentioning that Shaykh-ul-Islam Dr Muhammad Tahir-ul-Qadri has unique and the shortest chain of transmission to Imam al-Bukhari's al-Sahih through different sources.