بسم الله الرحمن الرحيم
Know, may Allaah have mercy upon you, that it is obligatory upon you to have knowledge of the four matters:
1. Knowledge (al – ‘ilm), which is knowledge and awareness of Allaah, and knowledge of His Prophet, and knowledge of the deen of Islaam with the proofs.
2. Action upon that.
3. Calling to that.
4. Patiently persevering and bearing any harm encountered upon that way.
📒 Taken from: (Al-Usool Ath-Thalaatha by Imam Muhammad ibn Abdul-Wahhaab [رحمه الله]| Explanation by Shaykh Muhammad ibn Saalih al Uthaymeen [رحمه الله])| Translated by Aboo Talhah Daawood ibn Ronald Burbank