Menachos 4:1 - 4:2

התכלת אינה מעכבת את הלבן – although it is a Mitzvah to place two threads of Tekhelet/blue and two threads of white or one thread of Tekhelet and three threads of white, nevertheless, this does not impair/invalidate by omission the other, and if he placed all four of them with Tekhelet or all four of them with white [threads], he has fulfilled his religious obligation.

תפלה של יד אינה מעכבת של ראש – Maimonides wrote, specifically that both (i.e., the Tefillin of the hand and the Tefillin of the head) are found with him. But only one of them is found with him, he should not put on the one until he has found the other since we make a decree lest he error and rely always on the one [only]. But this is not according to the Halakha, for the one who says this in the Gemara (Tractate Menahot 44a) retracted based upon the strength of what he was questioned but rather one who does not have [in order to fulfill] the two commandments, he should not even observe the one commandment, is to be read as a question [in astonishment]! But the Halakha is that whether both (i.e., the Tefillin of the arm and Tefillin of the head are found with him or whether they are not found with him, they do not impair/invalidate by omission the other, and so have admitted all of my teachers/Rabbis that this is the Halakhic practice.

הסולת והשמן – of the libations of the meal-offering.

אין מעכבין את היין – of the libations that if they brought the wine without the fine flour and the oil, he offers as a libation.

המתנות של מזבח החיצון – as, for example, the four gifts of the sin-offering.

אין מעכבות זו את זו – that if he did not give other than one [of them], he has atoned, as it is written (Deuteronomy 12:27): “the blood shall be poured out [on the altar of the LORD your God],” that one pouring/spilling is implied.

הפרים והאילים והכבשים – those that are written in the Torah portion of “Speak to the Priests” (Leviticus 23:18): “With the bread you shall present, as burnt offerings to the LORD, seven yearling lambs without blemish, one bull of the herd, and two rams” that come with the two loaves of Atzeret/Shavuot. אינם מעכבים (do not impair the validity of one another) – the two bulls and the one ram and the seven lambs of the Musaf/Additional offerings of Atzeret/Shavuot that are written in the Torah portion of Pinhas (Numbers 28:27). For [two] bulls of the Musaf/Additional offerings do not impair the bull of the two loaves, neither does the bull of the two loaves impair the two bulls of the Musaf/Additional offerings. And similarly the two rams of the two loaves do not impair the one ram of the Musaf/Additional offerings, nor the one ram of the Musaf/Additional offerings impairs the two rams of the two loaves. And similarly, the lambs do not impair neither these nor those.

רבן שמעון אומר אם היו להם פרים מרובין – that is to say, money in order to purchase bulls by the way for their needs, and they did not have money to purchase libations, they should bring one bull and its libations. And they derive it from Scripture, as it is written (Ezekiel 46:7): “And he shall provide a meal offering of an ephah for the bull, an ephah for the ram, and as much as he can afford for the lambs [with a hin of oil to every ephah],” can it really be that the measure of bulls and rams is one, but isn’t the meal-offering of the bulls is three Issaron and the meal offering of the rams two issaron, but rather to inform you hat it is better to bring one bull, one ram with his ephah, the measure that is appropriate for him, than to bring many bulls and many rams without their meal-offerings. But the Halakha is not according to Rabbi Shimon.