In the spiritual realm (before time and space were created), the Prophet Adam (pbuh) and all the prophets existed as complete human beings and they make a covenant with God. The Prophet Adam (pbuh) and Eve existed in the realm of souls, then in Heaven and later are sent to this world. There's no gradual evolution in the world. Those who claim there's evolution in the Qur'an avoid the fact that people existed in the spiritual realm before the Big Bang. They should not be insincere. - Harun Yahya