וּמִשְׁנֵ֣הוּ כִלְאָ֔ב לאביגל [לַאֲֽבִיגַ֕יִל] אֵ֖שֶׁת נָבָ֣ל הַֽכַּרְמְלִ֑י וְהַשְּׁלִשִׁי֙ אַבְשָׁל֣וֹם בֶּֽן־מַעֲכָ֔ה בַּת־תַּלְמַ֖י מֶ֥לֶךְ גְּשֽׁוּר׃
and his second, Chileab, of Abigail the wife of Nabal the Carmelite; and the third, Absalom the son of Maacah the daughter of Talmai king of Geshur;
Berakhot
It has been taught: His name was not Mephibosheth but Ishbosheth. Why, then, was he called Mephibosheth? Because he used to put David to shame on questions of Halakah. On that account David merited that Chileab should issue from him;