Productivity Principles of Umar bin Abdul Aziz (RA) 5 Videos 35:38 Book Reading: Productivity Principles of Umar II 13:22 Biography of Umar bin Abd al-Aziz 15:00 Book Reading: Productivity Principles – Spirituality 17:05 Productivity Principles #4: The Abundance Mindset 13:10 Productivity Principles #5 – Responsibility
