Hiyya, or Hiyya the Great, (ca. 180–230 CE) (Hebrew: רבי חייא, or רבי חייא הגדול) was a Jewish sage in the Land of Israel during the transitional generation between the Tannaic and Amoraic eras (1st Amora generation). Active in Tiberias, Hiyya was the primary compiler of the Tosefta. His full name is Hiyya bar Abba, also the name of the 3rd generation Amora of the Land of Israel, Hiyya bar Abba. He was a student of Judah haNasi, and uncle and teacher of Rav.
He passed the earlier part of his life in Babylonia, where he married a certain Judith. By her he had twin sons, Judah and Hezekiah (both of whom became renowned rabbis), and twin daughters, Pazi and Tavi. Hiyya was unhappy in his married life, for his wife was a shrew. This was so keenly felt by Hiyya that when asked by his nephew for a blessing he said: "May God preserve you from an evil that is worse than death—a contentious woman". Hiyya was especially affected by a trick she played upon him. Disguising herself, she went to him and asked whether the obligation of propagating the human race extended to women; receiving an answer in the negative, she took drugs which rendered her barren. However, Hiyya's good nature was so great that he overwhelmed her with presents, meeting the astonishment of his nephew by saying that men should show themselves grateful to their wives for rearing their children and for keeping their husbands from sin.
In the Land of Israel
In the latter part of his life Hiyya emigrated to Tiberias where he established a business in silks, which he exported to Tyre. The high reputation acquired by him in Babylonia had preceded him to Palestine, and he soon became the center of the collegiate circle of the patriarch Judah haNasi. Regarding him more as a colleague than as a pupil, Judah treated Hiyya as his guest whenever the latter chanced to be at Sepphoris, consulted him, and took him with him when he went to Caesarea to visit Antoninus. His admiration for Hiyya was so great that he used to say: "Hiyya and his sons are as meritorious as the Patriarchs". 
Judah's friendship and high esteem for Hiyya are connected in the aggadah with a miracle. In course of a conversation with him Judah said that if the Babylonian exilarch Huna Kamma, who was believed to be descended from David, came to Palestine he (Judah) would yield to him the office of patriarch. When Huna died and his body was brought to Palestine for burial, Hiyya went to Judah and said, "Huna is here," and, after pausing to notice Judah's pallor, added, "his coffin has arrived." Seriously offended, Judah banished Hiyya for thirty days. While the latter was away, the prophet Elijah, assuming Hiyya's features, presented himself to Judah and healed a toothache from which the patriarch had suffered for thirteen years. Judah was not long in discovering the truth of this wonderful cure, and his respect for Hiyya increased. Hiyya was also close with Judah's son Simeon, whom he learnt Psalms with.
It was said among the Palestinians that since the arrival of Hiyya in Palestine storms did not occur and wine did not turn sour. His prayers are said to have brought rain in a time of drought and to have caused a lion, which had rendered the roads unsafe, to leave Palestine. Other miracles of the same kind are credited to him. He was especially lauded by his Babylonian compatriots. Simeon ben Lakish names him after the two other Babylonians, Ezra and Hillel, who came to Palestine to restore the study of the Torah. However exaggerated this assertion may be, Hiyya was certainly very active in the promotion of learning in Palestine. He founded schools for children and often acted as instructor. It is related that when Hanina bar Hama boasted that he could reconstruct the Torah by logic should it be forgotten, Hiyya said: "I am able to devise a method by which the Torah would never be forgotten by Israel, for I would bring flax seed, sow it, spin thread, twist ropes, and prepare traps by means of which I would catch gazelles. The flesh of these I would distribute among poor orphans, and I would use the hides to make parchment, on which I would write the Torah. Provided with this, I would go to places where there are no teachers, and instruct the children."
Hiyya is portrayed in the Talmud as a model of virtue and goodness. His house is said to have been always open to the poor. Even his death is connected by legend with an act of charity: "The angel of death could not approach him. The angel therefore disguised himself as a poor man and knocked at Hiyya's door. Hiyya, as usual, gave the order to bring bread for the poor. Then the angel said: 'You have compassion on the poor; why not have pity upon me? Give me your life and spare me the trouble of coming so many times.' Then Hiyya gave himself up." At his death, relates another aggadah, stones of fire fell from the skies.
Hiyya's activity in the field of halakhah was very extensive. To him and his pupil Hoshea is due the redaction of the traditional halakhot which had not been included by Judah haNasi in the Mishnah. These halakot are known under the various names of "Baraitot de-Rabbi Hiyya," "Mishnat de-Rabbi Hiyya," and "Mishnayot Gedolot." Some of them are introduced in the Talmud with the words "Tane Rabbi Hiyya," and are considered the only correct version of the halakhot omitted by Judah. Hiyya was the author of original halakhot also, which he derived from the Mishnah by the hermeneutic rules.
Hiyya seems to have contributed to the Sifra the redaction of the tannaitic midrash to Leviticus, where his sayings are often quoted. From the time of Sherira Gaon, Hiyya was generally regarded as the author of the Tosefta, but the supposition has been rejected on very strong grounds by modern scholars.
Although very conservative, he opposed the issuing of new prohibitions: "Make not the fence higher than the Law itself, lest it should fall and destroy the plants".
As a Babylonian Hiyya hated the Romans, whom he compared to obnoxious insects. "God foresaw that the Jews could not bear the yoke of the Romans, and therefore designed Babylonia for their place of residence".
Hiyya's aggadot are particularly rich in thoughts concerning the moral life and the relations of human beings to one another.
Hiyya was a physician of high repute. The Talmud quotes many of his medical utterances, among which is a description of the development of the embryo in the womb which betrays considerable medical knowledge.
- As the dawn spreads gradually, so will the deliverance of Israel come gradually.
- "HIYYA BAR ABBA - JewishEncyclopedia.com". www.jewishencyclopedia.com. Retrieved 2016-09-09.
- Sanhedrin 5a
- Ketubot 62b
- Yevamot 65b
- Yevamot 63a
- Ruth Rabbah 1:17; Lamentations Rabbah 3:16; Genesis Rabbah 69
- Tanhuma, Vayeshev
- Bava Metziah 25b
- Jerusalem Talmud (Kila'yim 9)
- "SIMEON BEN JUDAH HA-NASI I. - JewishEncyclopedia.com". www.jewishencyclopedia.com. Retrieved 2020-05-21.
- Hullin 86a
- Genesis Rabbah 31
- Sukkah 20a
- Babylonian Talmud (Ketuvot 103b)
- Shabbat 151b
- Moed Kattan 28a
- Babylonian Talmud (Moed Kattan 25b)
- Hullin 141a
- Genesis Rabbah 19
- Tanhuma Vayeshev 17
- Pesachim 86a
- Yerushalmi Sotah 15a
- Shir haShirim Rabbah 2b
- Niddah 25a
- Yerushalmi Berachot 3b
This article incorporates text from a publication now in the public domain: Singer, Isidore; et al., eds. (1901–1906). "HIYYA BAR ABBA". The Jewish Encyclopedia. New York: Funk & Wagnalls. It has the following bibliography:
- Ibn YaHya, Shalshelet ha-Ḳabbalah, 32b;
- Heilprin, Seder ha-Dorot, ii. 128;
- Kirchheim, in Orient, Lit. ix. 611 et seq.;
- J. H. Weiss, Dor, ii. 198, 218;
- W. Bacher, Ag. Tan. ii. 520 et seq.;
- Baer, Das Leben und Wirken des Tannaiten Chiyya, in Berliner's Magazin, xvii. 115 et seq.;
- Mielziner, Introduction to the Talmud, p. 39;
- Halévy, Dorot ha-Rishonim, ii. 197.