This point has been extracted from 4 point, regarding matters after death. From the following post: Innovations Related to Funerals. From a series of 24 lectures delivered Abu Suhayl Anwar Wright (hafidhahullah Ta'ala) teaching a series titled: Summarized Rulings on Funeral Rights delivered at Germantown Masjid. From the book of Shaykh al-Albani (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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