Sefer Yair Nativ.

Rabbi Abraham ben Mordechai HaLevi (1650~1712) was born in Egypt and became one of the head Rabbis of Cairo and a Dayan (a judge in Jewish religious court of law). He was a contemporary of Rabi Moshe ibn Habib (1654-1696), author of Get Pashut, another work on divorce laws.

Yair Nativ deals with laws concerning the arrangement of a get (the divorce approval handed to the wife by the husband, after it was granted by the Rabbinic court of law) by a messenger. The book was printed in 1718 after HaLevi's death, in Constantinople, by his son in law Chaim Tawil.