Many are medayek not to wear a tie at Mincha on Shabbos. It isn't merely due to the cholent stains. I am interested if anyone has a clear makor for this. IMHO:
There is an interesting Rashi and Ran in Nedarim daf 77 that notes a custom for women to remove their Shabbat jewelry on Shabbat afternoons towards the end of the day.
Based on this, the Shu”t Gur Aryeh Yehuda OC 13 argues that the requirement to wear Shabbat clothes is no longer in force from late afternoon onwards.
(Others say that it only applies to jewelry and not to general shabbos clothes - see Orchot Chaim, OC 300:2).
The Erech Shai OC 262 says the reason one is not required to wear Shabbat clothes at this time is to recall that Yosef, Moshe, and David passed away Shabbat afternoon.
I note the Magen Avraham OC 262:2 rules that one should not remove one’s Shabbat clothes until after Havdala.
Based on this, it makes perfect sense to be yotzei all opinions, to wear shabbos clothes to mincha but not wear the tie (which may be like jewelry).
Before I take on this new chumra of the week, are there any thoughts from the Yeshiva World out there?