לרפואת נעמי בת טובה בתוך שח"י!
If someone is sick and it is a case of pikuach nefesh and he can either be fed ספק איסור החמור or ודאי איסור הקל to save his life, which is preferable?
For example - a definite piece of unkosher meat [לאו] or a ספק piece of chelev [כרת].
Machlokes Acharonim.... Netziv - feed him the safek. Pri Megadim - Go for the ודאי.
According to the opinion that we feed him the safek - why does the gemara say that if one is in the desert and doesn't know when Shabbos is he should do exactly what he needs to eat every day? Instead, he should do all of the melacha necessary to keep him going for the week one day and avoid melacha all of the other days. It is true that מספק he is committing a more serious offense [because he is doing more melachos] but he is avoiding the ודאי of doing melacha on Shabbos??
Think about it....:-)
