Chutz La’aretz - 2 days Yom Tov

Hi. Basically my family live in Israel. We made aliyah a few years ago. This year for the first time, we are doing one of the Sholosh Regalim in England (chutz la’aretz). I asked a Rav about halochos of it and he told me that practically I’ll be keeping 2 days because you cant even do melacha ’chedrei chadarim’ (in private). My grandfather asked the Rov of his shul and was told the opposite, namely that you can do melacha chedrei chadarim as long as you’re not doing it publicly. Even if the Rav is not going to Pasken, please can you inform me of all the different sources for the argument and where it’s quoted. Thanks, Ari

The issue is discussed in the Shulchan Aruch Orach Chaim (שולחן ערוך אורח חיים הלכות יום טוב סימן תצו סעיף ג) The prevalent minhag is not to do melacha even when not in front of others as your Rav told you. See Aruch Hashulchan(סי' תצג: ד, מגן אברהם ס"ק ד) . On the other hand, some poskim are lenient in regard to certain Melachot, when the action can be explained that is one done in a permissible manner by the ben Eretz Yisrael who is currently abroad , although in actuality it was not done in would not be permissible for someone who lioves all the time abroad. See (שו"ת בצל החכמה חלק א סימן לט ד"ה א) There are many other details involved and therefore our Chazal have taught us to choose a Rav and follow what he says. Chag Same'ach.