Since the complete Al-Mughni in English is not yet a reality (some publishers are rumored to be working on it), here are the best substitutes:
: A primary introductory text, fully available in English as a 2-volume set . The Refinement of Character : Focuses on spiritual ethics and manners. Download Refinement of Character (PDF) The Refinement Of Character By Imam Ibn Qudamah Al-Maqdisi almughni ibn qudamah english pdf full