This article revolves around the direct ways to prove the sighting of the new moon based on Islamic shari' a [jurisprudence]. Having defined the natural new moon and having explained how it is formed and how it has been brought up in jurisprudential texts, it has been discussed in two aspects as following: 1-Identifying the title under which the ruling for moon sighting can be placed, 2-Studying the direct ways (sensory) to sight the new moon based on general and specific arguments.