You must pray for the deliverance of the Muslims after their...
You must pray for the deliverance of the Muslims after their death and not sing poems in their praise. For his good deeds every individual will receive rewards. But otherwise, whether lights are put on his tomb or there is dust flying around there, it will not make any difference.
Ahmad Bin Tawlan & the Reciter of Qur’an If someone has departed from this world with good deeds behind him, and he had staunch faith in the Book of Allah (S.w.T.), then recitation of the Qur’an over his grave will be beneficial to him. Otherwise, you must have heard the story of Ahmad Bin Tawlan…
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