Wudu is a ritual washing performed by Muslims before prayer, known as Salah. It involves washing specific body parts, including the hands, mouth, nostrils, face, arms, head, and feet, in a particular order. This practice is intended to ensure physical and spiritual cleanliness, allowing individuals to approach their prayers with a pure heart and mind. The process of wudu is based on teachings from the Quran and the traditions of the Prophet Muhammad. It is an essential part of Islamic practice, emphasizing the importance of cleanliness in both physical and spiritual aspects of life.