Intention before Prayer
An-Niyyah (Intention) is a fundamental action before offering any act of worship. It is action of the heart as it is something between the salve and Allah Almighty. Therefore, it must not be uttered by the tongue.
`Umar (may Allah be pleased with him) reported the Messenger of Allah (peace be upon him) as saying: “Actions are judged only by intentions and a man will have only what he intended.” (Abu Dawud)
To know more information about the rulings and conditions of making niyyah before worship, watch this interesting talk with Dr. Muhammad Salah.
Source: Huda Youtube Channel.