Midrash for Menachot 163:11
לפיכך האומר הרי עלי תודה הרי עלי שלמים הואיל ובאין חובה לא יביאו אלא מן החולין ונסכים בכל מקום לא יביאו אלא מן החולין:
as peace-offerings, if a man designates [Second Tithe money for a peace-offering] the designation is binding. An objection was raised: If a man designated Second Tithe money for a peace-offering, when he redeems it<span class="x" onmousemove="('comment',' When a man redeems things consecrated or Second Tithe produce or Second Tithe money for other coinage he must add to the redemption money one fifth part of its value. For the former v.Lev.XXVII, 13, 15 and for the latter v. ibid. 31.');"><sup>20</sup></span> he must add two fifths, one in respect of things consecrated and one in respect of Second Tithe!<span class="x" onmousemove="('comment',' It is thus quite evident that the sanctity of the peace-offering rests upon the Second Tithe money that was merely designated for a peace-offering, contrary therefore to R. Eleazar.');"><sup>21</sup></span>