Shabbat HaGadol
From Halachipedia
Why is it called Shabbat HaGadol?
Drasha of the Rabbi
- The minhag is for the Rabbi of the community to give a Drasha on Shabbat HaGadol on Hilchot Pesach. [2] However, if Shabbat HaGadol falls out on Erev Pesach, the Drasha should take place a week earlier. [3]
- If the Rabbi who usually gives the Drasha on Shabbat HaGadol is in mourning and there’s no other Rabbi to make a Drasha it’s permissible to give the Drasha. [4]