Is it haram or makrooh (reprehensible) to work on Ashura, Tasooa, and the days of the martyrdom of the…

Answer

It is befitting for shopkeepers to shut down their shops and close their businesses on the occasion of the martyrdom of the Ahlul-Bayt, peace be upon them. In fact, if keeping shops open is considered disrespectful to the Ahlul-Bayt, peace be upon them, it is necessary to avoid doing so.