What is the ruling on placing shrouds in the mosque in such a way that requires them to remain there for a long time? Does this act entail reward, or is it an innovation? What is the evidence for its permissibility, if any?

A man's bequest to place two shrouds in the mosque, on condition that whoever benefits from them replaces them, can be legally categorized as a waqf (endowment) according to some jurists. This includes the Malikis and Ibn Taymiyyah, who permit the endowment of items whose benefit lies in their consumption. This would involve lending the shroud to whoever needs it, with the borrower then replacing it. The act of replacing the item is then considered equivalent to the persistence of the original item. There is no harm in placing the two shrouds in the mosque or its annexes, as it is mentioned in the Sunnah that the Companions placed date clusters in the mosque.