English: “And its blood shall be drained” — all of its blood, and not part of it.
In the sugya: The language of mitzuy is read as requiring completeness. Partial expression of the blood does not satisfy the verse; the draining must bring out the blood fully.
Type of Learning
Miyut from the language of full draining — all of the blood, not part.
What Is Learned
The mitzuy must express the blood fully, not leave a substantial remainder unexpressed. The verse’s “ve-nimtzah damo” is the source for requiring complete draining rather than a partial one.