וַיִּֽוָּלְד֤וּ לְאַבְשָׁלוֹם֙ שְׁלוֹשָׁ֣ה בָנִ֔ים וּבַ֥ת אַחַ֖ת וּשְׁמָ֣הּ תָּמָ֑ר הִ֣יא הָיְתָ֔ה אִשָּׁ֖ה יְפַ֥ת מַרְאֶֽה׃ (פ)
E ad Absalom nacquero tre figli e una figlia, il cui nome era Tamar; ella era una donna di bell'aspetto.
Rashi
Because he said, "I have no son." That can replace me and be as important as me.4He did have children as related earlier (14:27) but did not consider them on a par with his stature. See Sotah 11a.