Questioner:

What is the ruling on working with groups who are in opposition to the methodology of the Qurʾān and Sunnah in charitable acts or daʿwah?

Shaykh Ṣāliḥ ibn Fawzān al-Fawzān:

This enters under the statement of Allah;

۞ وَتَعَاوَنُوا عَلَى الْبِرِّ وَالتَّقْوَىٰ ۖ وَلَا تَعَاوَنُوا عَلَى الْإِثْمِ وَالْعُدْوَانِ

“..and do not help one another upon sin and injustice.” (Q 4:2).

Working with groups who are deviant and misguided is helping one another upon sin and injustice.