Menachot 143
ולא יעשה כריכות אבל מניחן צבתים: מאי טעמא דכמה דאפשר לא טרחינן:
What is the reason?-The Divine Law says. [The first of] your reaping, but not the [first of the] reaping for a religious purpose. ONE MAY NOT BIND THEM IN BUNDLES BUT THEY MUST BE LEFT IN SMALL HEAPS. What is the reason?-Because so far as is possible we must not work [before the 'Omer]. THE PRECEPT OF THE 'OMER IS THAT IT SHALL BE BROUGHT FROM THE STANDING CORN. Our Rabbis taught: It is written, And when thou bringest a meal-offering of first-fruits: what does this teach us? Since the precept of the 'Omer is that it shall be brought from the standing corn, whence should I know that if standing corn cannot be found it may be brought from the sheaves? The text therefore states 'thou bringest'. Another explanation is: 'Thou bringest': since the precept is that it shall be brought from the fresh corn, whence should I know that if fresh corn cannot be found it may be brought from the dry corn? The text therefore states 'thou bringest'. Another explanation is: 'Thou bringest': since the precept is that it shall be reaped by night, whence should I know that if it was reaped by day it is valid, and also that it overrides the Sabbath? The text therefore states 'thou bringest'. 'Thou bringest', whatever it is; 'thou bringest'. from any place; 'thou bringest', even on the Sabbath; 'thou bringest', even in a state of uncleanness. <br>
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
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>
דבר אחר תקריב לפי שמצוה להביא מן הלח ומנין שאם לא מצא מן הלח יביא מן היבש תלמוד לומר תקריב דבר אחר תקריב לפי שמצותו לקצור בלילה מנין שאם נקצר ביום כשר (תלמוד לאמר תקריב)
Rabbah b. Bar Hanah said in the name of R. Johanan. The ruling of R. Eleazar son of R. Simeon is based upon the principle enunciated by R. Akiba, his father's teacher. For we have learnt: R. Akiba stated a general principle: Any work which can be done on the eve of the Sabbath does not override the Sabbath Moreover, he [R. Eleazar son of R. Simeon] is of the same opinion as R. Ishmael who holds that the reaping of the 'Omer is a religious duty. For we have learnt: R. Ishmael says, Just as ploughing is optional. so the harvest [referred to in the verse] is an optional one, excluding the harvesting of the 'Omer, which is a religious duty. Now if we were to hold that if the 'Omer was reaped not in accordance with its prescribed rite it is valid, wherefore does it override the Sabbath? Let it be reaped on the eve of the Sabbath! Since, however, it does override the Sabbath, one may infer that [he holds that] if it was reaped not in accordance with its prescribed rite it is invalid. <br>
ודוחה את השבת תלמוד לאמר תקריב תקריב כל שהוא תקריב מכל מקום תקריב ואפילו בשבת תקריב ואפילו בטומאה:
But was not Rabbi a disciple of R. Simeon? Surely it has been taught: Rabbi said, When we were studying Torah at R. Simeon's [Academy] in Tekoa we used to carry up to him [on the Sabbath] oil and a towel from the courtyard to the roof, and from the roof to an enclosure, and from one enclosure to another enclosure, until we came to the fountain where we bathed! - He [Rabbi] concurs with the other teaching of R. Simeon. For it was taught: R. Simeon said, Come and see how precious is a precept in its proper time! For the burning of the fat and limbs is valid the whole night, yet they did not wait until nightfall. <br>