Maimonides
Not to commit incest with one’s daughter. Why has this not been explicitly set forth in the Torah ? Since the Torah forbids incest with one’s daughter’s daughter, it is silent on the prohibition of incest with one’s daughter.***As being unnecessary to set forth. It is learnt by tradition that this is an essential law of the Torah like the prohibition of the other classes of incest.
Maimonides gives no single verse for this commandment; it rests on the tradition he describes above.