The gemara has two suggestions for a general derivation of issur hana'a, based on the obligation to burn a particular sacrifice. Since the verse is viewed as redundant, the gemara suggests using the principle of "im eino inyan" to derive a general issur hana'a for all issurei akhila.
The gemara on 24b brings two variants of a statement of R. Abahu, limiting the liability in cases of issur. We shall first examine Rashi's understanding of these two statements (especially in light of the commentary of R. David), and the analyze the opinion of the Rambam.
