Book Title: Qawa'id Usul Al-Fiqh Al-Lati Yu'lamu Minha Haluh (Majma' Al-Usul).

Author: Jamal Al-Din Yusuf bin Abd Al-Hadi (Known as Ibn Al-Mubarrad Al-Hanbali).

Editor / Researcher: Muhammad bin Mahdi Al-'Ajmi.

Publishing House: Dar Ihya.