וּבַיּ֣וֹם הַשְּׁמִינִ֗י יִֽקַּֽח־לוֹ֙ שְׁתֵּ֣י תֹרִ֔ים א֥וֹ שְׁנֵ֖י בְּנֵ֣י יוֹנָ֑ה וּבָ֣א ׀ לִפְנֵ֣י יְהוָ֗ה אֶל־פֶּ֙תַח֙ אֹ֣הֶל מוֹעֵ֔ד וּנְתָנָ֖ם אֶל־הַכֹּהֵֽן׃
E no oitavo dia ele tomará para si duas rolas ou dois pombinhos e virá perante Hashem, à entrada da Tenda do Encontro, e os dará ao kohen.
Mishneh Torah, Sanctification of the New Month
There are things for which we don't make a leap year at all; but we do make them a support for a year that needs to become a leap [year] because of the season or because of the Spring [state of the barley] and the fruits of the trees. And these are them: Because of the goats and sheep that are yet to be born or which are few. And because of the chicks that have not [yet grown enough to have] flown. We do not make a leap year because of these – in order that the goats and sheep should be accessible for the Pesach sacrifices; and [that] the chicks be accessible for the offering of being seen (reiah) or for those who are obligated in a sacrifice of fowl. But we do make them a support for the year.
Sefer HaChinukh
That we should not give from our seed to Molekh: That we should not give some of our sons, to pass them in front of an idol that people would make during the time of the giving of the Torah, the name of which was Molekh; as it is stated (Leviticus 18:21), “And from your seed, you shall not give to pass to Molekh” — meaning some of your seed. And the warning is repeated in a different place, as it is written (Deuteronomy 18:10), “There shall not be found in you, one who passes his son or his daughter in the fire.” And so would they do — the father would hand him over to the priests for the sake of the abominations (idols), similar to that which is written about fit offerings (Leviticus 15:14), “and he shall give them to the priest.” And it is possible that the priests would do a waving or a presentation in front of the Molekh, and they would give him back to the father afterwards. And they would burn a big fire in front of the Molekh and the father would take his son and pass him through the flame of the fire. And so did they say in Talmud Yerushalmi Sanhedrin 7:10, “He is not liable until he gives [him] over to the priests and he takes him and passes him through. But the opinion of the rabbi, Rashi, may his memory be blessed (Rashi on Sanhedrin 64b, s.v. shraga) and Rambam (Mishneh Torah, Laws of Foreign Worship and Customs of the Nations 6:3), may his memory be blessed, is that he would not burn him, but rather the worship was to pass him through alone. And once he passed him as it was their way of passing, he is liable. And the opinion of Ramban, may his memory be blessed, (Ramban on Leviticus 18:21) is that he would pass him through the flame until his soul departs — and his proofs are in the commentary to the Pentateuch that he made.