וְאֵ֤לֶּה הָיוּ֙ בְּנֵ֣י דָויִ֔ד אֲשֶׁ֥ר נֽוֹלַד־ל֖וֹ בְּחֶבְר֑וֹן הַבְּכ֣וֹר ׀ אַמְנֹ֗ן לַאֲחִינֹ֙עַם֙ הַיִּזְרְעֵאלִ֔ית שֵׁנִי֙ דָּנִיֵּ֔אל לַאֲבִיגַ֖יִל הַֽכַּרְמְלִֽית׃
E questi furono i figli di Davide che gli nacquero a Hebron: il primogenito, Amnon, da Achinoam la Izreelita; il secondo, Daniele, da Abigail la Carmelita;
Rashi
the second, Daniel But in II Sam. (3:3) it says: “And the second (sic), Chileab, of Abigail.” It is explained in Midrash Vayechulu (Ozar Midrashim, p. 156) that David married Abigail after Nabal died, and they suspected that her son was Nabal’s. Therefore, David called him by two names: Chileab and Daniel. Daniel God judged him (sic); Chileab he resembles his father.