משנה תורה, הלכות שביתת עשורMishneh Torah, Rest on the Tenth of Tishrei
The third book is Zemanim (Times). Shevitat Asor; laws of Yom Kippur, except for the Temple serviceThe third book is Zemanim (Times). Shevitat Asor; laws of Yom Kippur, except for the Temple service