Here is a lecture that I have never posted previously, by the great Muhaddith, Badee Uddin Shah (rahimahullalh Ta'ala). It contains some very important reminders about the importance of calling to Allah and how it should be done.
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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