Sefer Ha’mitzvos Ha’Katzar (The concise book of mitzvos) By the Chofetz Chaim
This book lists the Torah mitzvos that can be observed today
Second Section – the Negative Commandments
150. It is a negative commandment “do not do work on Rosh HaShana”
As it states in Vayikra (Leviticus) 23: 24-25, “On the first day of the seventh month, you shall not do any work.”
This applies in all places and at all times, for men and for women.