Mishnah for Chullin 120:30
שעיר זה יהא כפרה על שמיעטתי את הירח
R'Nahman B'Papa had a garden and he sowed in it seeds but they did not grow.
Mishnah Kilayim
They may not graft from one tree to another, or from one vegetable to another, or from a tree to a vegetable, or from a vegetable to a tree. Rabbi Judah permits it from a vegetable to a tree.
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