Talmud zu Kilayim 1:7

I could think that somebody who redeems a vineyard outside the Land would return, the verse says¹⁷⁰Deut. 20:6.: “And he did not redeem it”. In case one is commanded to redeem it¹⁷¹In Lev. 19:23, the duty of redemption is clearly restricted to the Promised Land.; this excludes where there is no commandment to redeem. It was stated¹⁷²Also quoted in the Babli, 43b. R. Eliezer ben Jacob rejects the extension of the exemption from combat duty given in the Mishnah.: Rebbi Eliezer ben Jacob says, one only understands “vineyard”. And similarly, one only understands “planted”. It was stated: “And he did not redeem it¹⁷⁰Deut. 20:6.”, that excludes him who sinks or grafts. Rebbi Joḥanan said, this follows Rebbi Eliezer ben Jacob. Rav Ḥisda said, this is everybody’s opinion if he grafted fruits of sin¹⁷³Since reciting a benediction over any forbidden fruit is blasphemy (Ḥallah 1:9, 58a line 53; Babli Baba qama 94a), it is obvious that since an orchard of kilaim cannot be redeemed, the person who planted it cannot be exempted.. Where do we hold?¹⁷⁴What kind of grafting entitles a man to leave the war zone following the Mishnah but not R. Eliezer ben Jacob? If he grafted a fruit tree on another fruit tree of a different kind; these are fruits of sin¹⁷⁵These are unquestionably forbidden kilaim.. But if he grafted a fruit tree on a futile tree, as if it were its own kind, he is planting anew¹⁷⁶The stump of the futile tree is simply considered as earth; according to everybody grafting on such a stem is the same as planting in the earth.. But we hold if he grafted a black fig tree on a white one¹⁷⁷This is permitted; the owner returns following the Mishnah but not R. Eliezer ben Jacob. A “black” fig is a purple one; a “white” fig is green..