This book, 'The Purity', explains that under Islam the concept of purification is not limited to personal and physical purity, but that it also includes purifying oneself of sin and all disobedience of God. The book then discusses the detailed rules of physical purification, including: ablution, grand ablution, the removal of impurity, dry ablution, etc. We hope that this book will be of benefit to Muslim readers, giving them clear knowledge of the rules of their religion in this area. We also hope that non-Muslim readers will gain an insight into an important aspect of the religion of Islam and will find this book interesting. Table of ContentsQualities of Purification Purification From Tangible Impurities What is Wudu'? Full Description of Wudu' Supererogatory Acts of Wudu' Things That Invalidate Wudu' Wudu' is Recommended for the Following Some Infractions During Wudu' Some Verdicts on Wudu' Wiping over Boots and the Like The Area to be Wiped Prerequisites for Wiping over Boots Description of Wiping over Boots Time Limit Things that Terminate the Validity of Wiping Major Ritual Purification (Ghusl) Description of Complete Ritual Bath (Ghusl) Satisfactory Ghusl Cases in which Ghusl is Recommended Acts of worship that cannot be done when one is in a state of Janabah (Sexual Impurity) Some Offenses and Errors in the Ritual Bath (Ghusl) Tayammum Factors that Make Tayammum Permissible Description of Tayammum Things That Invalidate Tayammum Some Verdicts On Tayammum