Reference for I Kings 16:12

וַיַּשְׁמֵ֣ד זִמְרִ֔י אֵ֖ת כָּל־בֵּ֣ית בַּעְשָׁ֑א כִּדְבַ֤ר יְהוָה֙ אֲשֶׁ֣ר דִּבֶּ֣ר אֶל־בַּעְשָׁ֔א בְּיַ֖ד יֵה֥וּא הַנָּבִֽיא׃

Thus did Zimri destroy all the house of Baasa, according to the word of the LORD, which He spoke against Baasa by Jehu the prophet,