https://www.salafisounds.com/explanation-of-the-four-fundamental-principles-by-shaykh-dr-khalid-ad-dhafiri/
^Explanation of The Four Fundamental Principles of Shaykh al-Islām Muhammad ibn ‘Abdil Wahhāb رحمه الله – By Shaykh Dr. Khalid Adh-Dhafiri حفظه الله – Masjid As-Sunnah [Audio Lecture]
https://on.soundcloud.com/H5zrzqRpJaWyGB6W9
^Audio lecture by Markaz Bukhari (masjid)
https://on.soundcloud.com/YnE41ms8mNWXZrP88
^Audio lecture by Learn About Islam
https://on.soundcloud.com/ZebpVBNy1S35zceR9
^Audio lecture by Learn About Islam [starts from titled: ‘Lesson 3’]
https://on.soundcloud.com/wC2S5oApVHeUzM5M6
^Audio lecture by SalafiCentre Nigeria
https://on.soundcloud.com/h2tLmtGPNREV6g9a9
^Audio lecture by Masjid bin Baz
The Four Fundamental Principles.pdf
https://salafipublications.com/sps/downloads/pdf/TAW010001.pdf
https://www.salafipublications.com/sps/downloads/pdf/TAW070009.pdf
^ PDF Study Guide
Note: Many masjid hold multiple lectures for the same topic. Typically is taught by different teachers. I decided to share multiple from the same masjid.