ד מצות העומר להביא מן הקמה: תנו רבנן (ויקרא ב, יד) ואם תקריב מנחת בכורים מה תלמוד לומר לפי שמצות העומר להביא מן הקמה מנין שאם לא מצא מן הקמה יביא מן העומרין תלמוד לומר תקריב
4 IF IT WAS REAPED BY DAY IT IS VALID. But we have learnt: The whole night is valid for reaping the 'Omer and for burning the fat and the limbs [of sacrifices on the altar]. This is the general rule: any commandment which is to be performed by day is valid during the whole of the day, and any commandment which is to be performed by night is valid during the whole of the night. Now night and day are on a par, and just as that which is to be performed by day is not [valid] by night so that which is to be performed by night is not [valid] by day! - Rabbah said, This is no difficulty, for one represents Rabbi's view, the other the view of R. Eleazar son of R. Simeon. For it was taught: If [the priest] was standing and offering up the 'Omer meal-offering and it became unclean, if there is another [available] he should be told, 'Bring the other in its place'. But if not, he should be told, 'Be wise and keep silent' . So Rabbi. But R. Eleazar son of R. Simeon says. In either case he is told, 'Be wise and keep silent', for the 'Omer that was reaped not in accordance with its prescribed rite is invalid. <br>