Part of the 23rd Hadīth of al-Nawawi’s collection refers to purification as a

The 23rd Hadīth of al-Nawawi's collection refers to purification as "half of faith." This means that purification or cleanliness is considered a fundamental part of the Islamic faith and is given great importance in Islamic teachings. Keeping oneself clean and pure, both physically and spiritually, is a way to show devotion and love for Allah and is believed to bring one closer to Him. The emphasis on purification is reflected in the Islamic practices of wudu (ritual washing before prayer) and ghusl (full-body purification), which are considered necessary before certain acts of worship.