Sefer Hamitzvot is a work by the 12th-century rabbi, philosopher, and physician, Moses Maimonides. While there are various other works titled similarly, the title "Sefer Hamitzvot" without a modifier refers to Maimonides' work. From Wikipedia
His founding of Yeshivas Ner Moshe in 1984 fostered generations of Torah scholars who will gather this afternoon for his funeral
