Seeing as the Par is burnt in its entirety, from where do we know that the insides, the sinews, the horns and the hoofs were included?
Ramban: They are included in the word "ha'Par".
Moshav Zekenim: "V'Es [ha'Par]" includes them.
Since when is a Chatas Chitzonah (whose blood is sprinkled on the outer Mizbe'ach) entirely burned?
Rashi (9:11): The only cases of a Chatas Chitzonah being entirely burned are the Eil ha'Milu'im (here) and the calf of Aharon's Chatas on the eighth day of the Milu'im.