If one decides he needs black clothing during Shabbos, why would this invalidate hise Eruv (according to Beis Shamai) – since the Eruv was valid at the time it took effect at the onset of Shabbos?
If one decides he needs black clothing during Shabbos, why would this invalidate hise Eruv (according to Beis Shamai) – since the Eruv was valid at the time it took effect at the onset of Shabbos?