What is the permissibility of a master looking at the entire body of his female slave, including her private parts?

Primary text

It is permissible for a master to look at the entire body of his female slave, including her private parts, whether she is a concubine (*sariyah*) or otherwise. This is analogous to the ruling regarding spouses, as enjoyment of her entire body is permissible to him, thus necessitating permissibility of viewing it.