וּבִשְׁנַ֣ת עֶשְׂרִ֔ים לְיָרָבְעָ֖ם מֶ֣לֶךְ יִשְׂרָאֵ֑ל מָלַ֥ךְ אָסָ֖א מֶ֥לֶךְ יְהוּדָֽה׃
And in the twentieth year of Jeroboam king of Israel began Asa to reign over Judah.
Find Talmudic references to I Kings 15:9: , passages from the Talmud Bavli and Yerushalmi.