Page "Afterlife" Paragraph 46

Among well known ( generally non-kabbalist or anti-kabbalist ) Rabbis who rejected the idea of reincarnation are Saadia Gaon, David Kimhi, Hasdai Crescas, Yedayah Bedershi ( early 14th century ), Joseph Albo, Abraham ibn Daud, the Rosh and Leon de Modena.

Saadia Gaon, in Emunoth ve-Deoth ( Hebrew: " beliefs and opinions ") concludes Section VI with a refutation of the doctrine of metempsychosis ( reincarnation ).

While refuting reincarnation, the Saadia Gaon further states that Jews who hold to reincarnation have adopted non-Jewish beliefs.

By no means do all Jews today believe in reincarnation, but belief in reincarnation is not uncommon among many Jews, including Orthodox.

Most Orthodox siddurim ( prayerbooks ) have a prayer asking for forgiveness for one's sins that one may have committed in this gilgul or a previous one.