Philo Judaeus De Abrahamo 258

[258] And there are evidences of these assertions to be seen in the holy scriptures; which it is impossible should be convicted of false witness, and they tell us that Abraham, having wept a short time over his wife’s body, soon rose up from the corpse; thinking, as it should seem, that to mourn any longer would be inconsistent with that wisdom by which he had been taught that he was not to look upon death as the extinction of the soul, but rather as a separation and disjunction of it from the body, returning back to the region from whence it came; and it came, as is fully shown in the history of the creation of the world, from God.