No, it is not an absolute or unconditional requirement that a woman must spend her ʿiddah only in her husband’s house in every situation.
The basic rule in Islam is that ʿiddah is observed in the marital home because it serves clear purposes: it gives space for emotional cooling, preserves privacy and dignity, avoids unnecessary social pressure, and (in revocable divorce) leaves room for reconciliation. This is why the Qur’an mentions not expelling women from their homes during ʿiddah.
However, this rule is not meant to cause harm. Islamic law is built on the principle that no command is meant to inflict hardship, fear, or emotional or physical harm. If a woman feels unsafe, deeply distressed, emotionally unstable, or genuinely lonely to the point that it affects her mental well-being, she is not required to suffer silently just to fulfill a form.
In such cases, moving to her father’s or guardian’s home is permissible, because the objective of ʿiddah (reflection, dignity, protection) is still fulfilled there—often better than in isolation or fear. Islam prioritizes human well-being over rigid formality.
ʿIddah is about time and conduct, not about imprisoning a woman in distress.Islam does not demand endurance of emotional harm in the name of obedience. Where the purpose is preserved and harm is avoided, the law allows flexibility.