دليل الحاج والمعتمر وزائر مسجد الرسول صلى الله عليه وسلم: دليل موجز يحتوي على ما تيسر من أحكام الحج والعمرة.
Muhammad ibn Saleh al-Othaimeen
A Guide to Hajj, ‘Umrah and Visiting the Prophet’s Mosque
This treatise was prepared by the Agency of Islamic Enlightenment in Hajj. Includes a discussion about those things which nullify a person's Islam as well as common errors made by the commonfolk.