Qaa'idah Jaliyyah fi at-Tawassul wa al-Waseelah is a Book written by ash-Shaykh al-Islaam Ibn Taymiyyah (Rahimahullaah) that explains the Issue of at-Tawassul (the act of obtaining closeness to Allaah ta'alaa) and al-al-Waseelah (The Approach or Means). This books explains this principle in detailed from it what is legistated in it and what is inovated. Reviewed and checked by ash-Shaykh Rabee' bin Haadi al-Madkhali (Haafidhullaah) and printed by Dar al-Imaam Ahmad on yellow paper. 440 pages.