Shaykh Al-Islām Ibn Taymiyyah رحمه الله said:
"Sins and transgressions not only cause the Muslims to become weak,
but they also cause the Muslims to be overpowered by their enemies.”
Al-Istiqamah,
(1/466)
Translated by: Dr. Musa Shaleem Mohammed (may Allaah preserve & protect him)
@musashaleem