Mishnah — Seder Moed, Tractate ChagigahChapter 1…
“ Explanation burnt-offerings: The mishnah refers to burnt-offerings brought in fulfillment of a vow, which may only be brought on the intermediate days, but not on the sacred holidays at the beginning and end of each festival. These must be brought from unconsecrated funds, and can not be brought from the second tithe. peace-offerings: The mishnah refers to peace-offerings, which were not brought in fulfillment of any personal pledge, but out of a desire to celebrate in God's name. These offerings as well may only be brought on the intermediate days. ”
