I confess that I'm relying hevily on secondary halachic literature. I'm not sure where to find this by the Chafetz Chaim since Mishnah Berurah doesn't go on Yoreh Deah where this halachah is found. I'm not familiar at all with the Chazon Ish on the inside.
I'll see what I can find out.
I'll see what I can find out.
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