Korban Olah
VaYikra 1,9: "V'hiktir haKohen es HAKOL hamizbeicha" - The Ohr HaChaim HaKadosh asks from the Gemara (Chulin 90a) that says that we include the horns and the hooves in the requirement of the "complete" burning of the "korban olah." This is derived from the word "HAKOL" in our verse. If so, how was Avrohom allowed to save the horns of the ram, which he sacrificed as a "korban olah" (Bereshis 22,13), for shofros to herald the coming of Moshiach as mentioned in Pirkei d'Rebbi Eliezer chapter 31?
He answers that the Gemara (Zevachim 86a) says that once the sacrifice has been placed onto the altar and the fire's intense heat causes pieces, called "pokin," to fly off the altar, the pieces need not be returned to the altar and may be used for mundane purposes. This might have happened to those horns.
Alternatively, the Ohr HaChaim HaKadosh offers that the Gemara there says in the name of Rabbi Zeira that the horns and hooves are only placed onto the altar to be consumed if they are connected to the body of the sacrifice. If they were disconnected before being placed onto the altar, they are not to be burned on the altar. The horns of the ram might have been disconnected from its body.
This second answer seems very far-fetched. However, upon taking notice of a seemingly superfluous word in the story of the Akeidah, Bereshis 22,13, "ne'echaz basvach b'KARNOV, - the ram's HORNS were entangled in shrubbery," an explanation might emerge. Why mention which part of its body was entangled? Perhaps this alludes to the answer of the Ohr HaChaim HaKadosh, that the ram's horns became detached before being placed onto the altar. This is plausible since its horns were entangled and it could very well have struggled mightily to free itself, loosening or detaching its horns in the process.
Finally, the Ohr HaChaim HaKadosh offers that Avrohom did not have to comply with the future edicts of the Torah, as it had not yet been given. The decision to comply or not to comply depended upon weighing benefits that could arise from not complying, in this case having shofros available for the heralding of Moshiach. This concept has been discussed at length by many regarding Yaakov's marrying two sisters.
