Biography
Chananya ben Achi Rabbi Yehoshua was a tanna, known as the nephew of Rabbi Yehoshua. He appears in the Talmud and in midrashic works, taking part in discussions of both halachah and the meaning of Torah verses.
In tractate Chagigah, he is brought alongside Rabbi Yitzchak in a discussion of whether vows and pledges have a basis on which to rely. Where Rabbi Yitzchak grounds the matter in the verse “kol nediv libo” (Shemot 35:5), Chananya brings support from Tehillim (119:106), “nishbati va’akayemah lishmor mishpetei tzidkecha” — “I have sworn and I will fulfill it, to keep Your righteous ordinances” — teaching that one who makes such a commitment is bound to carry it out.
חנניה בן אחי רבי יהושע היה תנא בדור השלישי, בתחילת המאה השנייה לספירה, שנולד בארץ ישראל ולאחר זמן עבר לבבל. שלא כרבים מהתנאים, הוא אינו מזוהה בשמו של אביו, אלא בשמו של דודו, רבי יהושע בן חנניה. לעיתים מופיע שמו בברייתות כ"חנניה" סתם, ובמשנה אינו מופיע כלל.
Hanina(h) ben Ahi Rabbi Joshua, or Hananiah ben Ahi Rabbi Joshua, meaning 'Haninah/Hananiah son of the brother of Rabbi Yehoshua' was a Jewish Tanna sage of the third generation. Unlike many other Tannaitic sages, he is not recognized by his father's name, but rather with his uncle's name, R. Joshua ben Hananiah. He does not appear on the Mishnah at all. Sometimes he is recorded in baraitas as merely Hananiah, which can lead to confusion with Hananiah ben Akavia.
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