An old man was worshiping man among the children of Israeel. One while he was praying he saw two boys plucking feathers from a rooster. He continued praying and didn’t prohibit them from doing that. Allah then commanded earth: "Cleave under the feet of My servant." And so it cleaved and he fell and will still be falling till eternity.
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Stated in Al-Kafi Book by Al-Sheikh Al-Kulaini.
