5:48 PM
Gil Student
Mishnah, Megillah 3:3 (from here):
And Rabbi Yehudah further said, If a synagogue has been destroyed, they may not eulogize within it, and they may not twist ropes within it, and they may not spread nets within it, and they may not spread produce on its roof, and they may not make of it a path, as it is written, "and I will bring your sanctuaries unto desolation" (Lev. 26:31) - their sanctity, even when they are desolate. If weeds grew in it, he may not pluck, on account of grief.
