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Hai Ben Sherira Gaon

Hai ben Sherira (or Hai b. Sherira (Gaon), Hebrew: האי בר שרירא; better known as Hai Gaon, Hebrew: האיי גאון, b. 939, d. March 28, 1038), was a medieval Jewish theologian, rabbi and scholar who served as Gaon of the Talmudic academy of Pumbedita during the early 11th century. He received his Talmudic education from his father, Sherira ben Hanina, and in early life acted as his assistant in teaching. In his forty-fourth year he became associated with his father as "ab bet din," and with him delivered many joint decisions.

https://en.wikipedia.org/wiki/Hai_Gaon

A Tree Comes of Age, an essay on the awakening of the trees during the month of Sh’vat by Rabbi Dr. Daniel Sperber

Contributed on: י״ט בשבט ה׳תשע״ו (2016-01-28) by Aharon N. Varady (transcription) | Daniel Sperber | Hai Ben Sherira Gaon |

Tu Bish’vat is sometimes referred to as the day in which the sap begins to rise in the trees. From where does this teaching arise? . . .


שִׁמּוּשׁ תְּהִלִּים‬ | Shimush Tehillim (the Theurgical Use of Psalms), attributed to Hai ben Sherira Gaon

Contributed on: ט״ז באייר ה׳תשע״ה (2015-05-04) by Hai Ben Sherira Gaon | Aharon N. Varady (transcription) |

The Shimmush Tehillim is a medieval work providing prescriptive theurgical associations for Psalms and verses from Psalms. It has been historically attributed to Rav Hai Gaon (939-1038 CE) but any definitive statement of authorship is lacking. The suggestion that portions of the Shimush Tehillim were authored during the late Geonic period in Iraq isn’t implausible. We also know that Hai Gaon was knowledgeable of Hekhalot writings that should at least be considered part of the same thought world as the Shimmush Tehillim. Writings found in the Shimush Tehillim have been found in manuscripts dating from the 12th century. This digital transcription of Shimush Tehillim derives from Elias Klein Békéscsaba’s 1936 compilation. This edition should not be considered a critical text, as earlier editions certainly exist. Not all of the Psalms are identified as having a particular theurgical use. . . .



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