https://www.muslim-library.com/russian/%d0%bf%d1%80%d0%b8%d1%87%d0%b8%d0%bd%d1%8b-%d1%83%d0%b2%d0%b5%d0%bb%d0%b8%d1%87%d0%b5%d0%bd%d0%b8%d1%8f-%d0%b8-%d1%83%d0%bc%d0%b5%d0%bd%d1%8c%d1%88%d0%b5%d0%bd%d0%b8%d1%8f-%d0%b2%d0%b5%d1%80%d1%8b/
Причины увеличения и уменьшения веры