Qurratu 'Uyoon al-Muwahideen also known as "Khatimah al-Bahr al-Mufeed fi Bayan Masaa'il at-Tawheed" written by ash-Shaykh al-Islaam's Grandson al-Allaamah ash-Shaykh 'Abdur Rahmaan bin Hasan Ibn ash-Shaykh Muhammad bin 'Abdul Wahhab. ash-Shaykh Muhammad bin 'Abdul Wahhab was ash-Shaykh 'Abdur Rahman's first teacher (May Allaah have mercy on them both). This is the first time that this book has ever been printed. Printed in one big volume on 640 pages of yellow paper.