[If] an aris protrudes from an embankment — R’ Eliezer ben Yaakov says: If while standing on the ground one can pick it completely, it prohibits four cubits in the field; if not, it prohibits only across from it. R’ Eliezer says: Even if someone plants one on the ground and one on the embankment, if it is higher than the ground by ten handbreadths, it is not combined with it; but if not, then it combines with it.