«رخصة الفعل مع بقاء الحرمة»
A concession for an act while its underlying prohibition remains.
The textbook illustrates this with severe coercion involving a genuine threat to life or bodily integrity, discussing a limited allowance concerning an outward utterance of unbelief.
«بشرط أن يكون قلبه مطمئناً بالإيمان»
Provided that the heart remains firm in faith.
The issue is genuine duress and inward faith under extreme danger. It cannot be extended to voluntary rejection of faith or ordinary social pressure.