Rashi on Leviticus 6:2/רש"י על ויקרא ו׳:ב׳

1צו את אהרן COMMAND AARON — The expression “Command …!” always implies urging on to carry out a command, implying too, that it comes into force at once, and is binding upon future generations (cf. Rashi on this passage in Kiddushin 29a). R. Simeon said: Especially must Scripture urge on the fulfilment of the commands in a case where monetary loss is involved (Sifra, Tzav, Chapter 1 1; Kiddushin 29a).

2‎ 'וגו‎‎ ‎זאת תורת העולה THIS IS THE LAW OF THE BURNT OFFERING: [SUCH BURNT OFFERING SHALL REMAIN ON THE FIRE-PLACE UPON THE ALTAR ALL NIGHT] — This paragraph (vv.1—2) is intended to teach, with reference to the burning of the fat-portions and limbs of sacrifices that it is permissible during the whole night (Megillah 21a); and to teach regarding disqualified sacrifices, which of them, if already brought up on the altar, must be taken down, and which, if brought up, need not be taken down. The latter case may happen, because the term, תורה wherever it occurs in Scripture as an introduction to a group of laws (cf. Leviticus 6:7, 18; 7:1,11 etc.) is intended as an all-inclusive term (to include all of the class mentioned); here it is intended to tell us: One law applies to all animals that may be brought up on the altar, even certain disqualified ones — that if these have once been brought up on the altar they shall not be taken down again (Sifra, Tzav, Chapter 1 7; Zevachim 27b).

3הוא העולה — is intended to exclude from the general law of עולה male and female cattle with which sexual sin had been committed and the like (i. e. that even if they were put on the altar they must be taken down again), because their disqualification did not occur in the Holy Place, since they were dis-qualified before they came into the forecourt (Sifra, Tzav, Chapter 1 8).