Talmud for I Chronicles 24:4

Rebbi Jacob bar Aḥa, Rebbi Ḥiyya in the name of Rebbi Joḥanan: Moses instituted eight watches, four from Eleazar and four from Ithamar⁹⁵Babli 27a; Tosephta 3:2., until David and Samuel the Seer added another eight, four from Eleazar and four from Ithamar. They wanted to add another eight to bring them to 24, and found from Eleazar but did not find from Ithamar. This is what is written⁹⁶1Chr. 24:4.: it was found that the descendants of Eleazar were more heads than the descendants of Ithamar, etc. Rebbi Jacob bar Aḥa, the Elder Rebbi Ḥuna from Sepphoris in the name of Rebbi Joḥanan: One clan, one clan selected from Eleazar⁹⁷1Chr. 24:6. The repetition is not in the MT., other clans were added for him; and selected, selected for Ithamar, what he had, he had. Rebbi Ze`ira in the name of Rav Ḥuna: For Ḥezir, seventeen⁹⁸1Chr. 24:15. It is claimed that ranks 1–8, 17–24 in the cycle of watches are from Eleazar.. The cycle came back to Eleazar.