This is not the best quality recording, even after being remastered from two tapes to one, but it is possibly one of the best, if not the best Urdu lectures I have heard, in my life, on the subject of Tawheed, delivered by Shaykh Badee Uddin Shah (rahimahullah Ta'ala).
Abu Hurairah (رضي الله عنه) narrated that the Prophet ﷺ said: "Whoever invites to guidance will be rewarded like those who follow him in the guidance are rewarded, and that will not decrease the reward of those who have followed him." [Collected by Imām Muslim]
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