Wednesday, July 10, 2013

9 Av as a moed

Chasam Sofer asks: When 9 Av falls on Shabbos, why does 10 Av, the day of the fast, have dinim that relate to it being a “moed?”  Lichorah, it is just the fasting which is pushed off until Sunday because it is impossible to fast on Shabbos, but the din “moed” can be celebrated on Shabbos and therefore should not come into play on the 10th.


  1. A little clarification? Can you explain what the "Moed dinim" are?

  2. like skipping tachanun, for example

  3. I believe a chakira has been suggested about about years when Tisha B'av falls on shabbat: is the 10th of Av a merely a nidche/postponed observance, or was Chazal's definition of the fast-day we call Tisha B'av fundamentally binary: it falls on 9th of Av in most years, but fundamentally is set on 10th of Av in years when 9th of Av is shabbat.

    The second side in this chakira is defensible, including because the 10th of Av really could have logically been chosen as the real fast day in all years, as the gemara notes, since most of the burning of the mikdash occurred on the 10th (but began on the 9th).

    So, according to this second side of the chakira, the moed in fact falls on the 10th of Av (and not the 9th) in years when the 10th falls on a Sunday. If the Chatam Sofer does not answer this, then I suppose he held in accordance with the first alternative of the chakira, i.e. the 10th is merely a nidche observance of the fast.

  4. You certainly can use that chakira, but even without the chakira you can say(and this is the C.S.'s chiddush) that the din mo'ed is not tied to the date, but is tied to the fast. IOW, it's not called a mo'ed because at some point in the future 9 Av (the date) will be a day of celebration, but rather because our experience of aveilus (whether it falls on the 9th of 10th) will be transformed into simcha.