פירוש על דברי הימים א 3:1

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.