Drawing Blood from Father-in-law
Question
Is it permissible for a son-in-law to draw blood from his father-in-law?Or is it forbidden, just as a son is forbidden to draw blood from his father?Thank you.
Answer
Shalom,
The obligation to honor one's father-in-law is not the same as the obligation to honor one's own parents. The definition is that one needs to respect his father-in-law like he would to other important people.
Therefore, there is no prohibition against drawing blood from him for medical purposes and the like.
Source
Shach, Yoreh De'ah, Siman 240, Siman 24, Seif Katan 22:
A person is obligated, etc. The Bach writes that this means he should be respected like other distinguished elders:
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