וַיָּ֨מָת נָדָ֤ב וַאֲבִיהוּא֙ לִפְנֵ֣י אֲבִיהֶ֔ם וּבָנִ֖ים לֹא־הָי֣וּ לָהֶ֑ם וַֽיְכַהֲנ֔וּ אֶלְעָזָ֖ר וְאִיתָמָֽר׃
But Nadab and Abihu died before their father, and had no children; therefore Eleazar and Ithamar executed the priest’s office.
Read halakhic rulings (Jewish law) on I Chronicles 24:2: and classical halakhic sources.