A Deep Grave and a Warning

Before his passing, Rebbi Yossi ben Kisma asked to be buried deep in the earth. He then explained his request with a cryptic prediction of what would happen at the end of the days: "There will be no palm tree in Bavel that a Persian horse will not be tied to, and there will be no coffin in Eretz Yisroel that a Median horse will not eat straw out of it."