For Abu Hanifah, an unexcused exit breaks the required presence even if brief. Abu Yusuf and Muhammad treat a brief absence differently and specify the threshold of more than half a day.
This is an intra-Hanafi disagreement. Both positions belong in the lesson, with correct attribution to each jurist.
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Bab al-Iʿtikaf: Rules, Restrictions, Invalidation and Vows
For Abu Hanifah, an unexcused exit breaks the required presence even if brief. Abu Yusuf and Muhammad treat a brief absence differently and specify the threshold of more than half a day.
This is an intra-Hanafi disagreement. Both positions belong in the lesson, with correct attribution to each jurist.