It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: Allah Almighty has appointed an angel over the womb of the mother, who at its appointed time keeps saying: O Lord! Now it has become a drop of fluid. O Lord! Now it has become a clot of flesh. Then when Allah intends to create it, the angel asks: O Lord! Will it be wretched or blessed? Will it be male or female? And how long will its lifespan be? All these things are written in the mother's womb.