One who says: “Offering,” “burnt-offering,” “meal-offering,” “sin-offering,” “thanksgiving-offering,” [or] “peace-offering, that [which] I eat of yours” —- [it is] binding. R' Yehudah permits [it].  “Hakorban,” “kekorban,” [or] “korban, that which I eat of yours” —- [it is] binding. “Lekorban, I shall not eat of yours” —- R' Meir prohibits [it].  One who says to another: “Konam my mouth [from] talking with you,” “my hand from working with you,” [or] “my feet from walking with you” —- [it is] binding.