وَإِنْ وَطِئَ بَعْدَمَا طَافَ أَرْبَعَةَ أَشْوَاطٍ فَعَلَيْهِ شَاةٌ
Translation: If he has intercourse after completing four tawaf circuits, one sheep is due.
The wording after he completed four circuits requires that all four actually have been completed. Three completed circuits do not meet that threshold.
A sheep offering remains due. Whether the Umrah itself has become invalid or must be repeated is answered separately by the following clause.
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Bab Jinayat al-Muhrim — Intimacy, Invalidity and Compensation (Part II)
وَإِنْ وَطِئَ بَعْدَمَا طَافَ أَرْبَعَةَ أَشْوَاطٍ فَعَلَيْهِ شَاةٌ
Translation: If he has intercourse after completing four tawaf circuits, one sheep is due.
The wording after he completed four circuits requires that all four actually have been completed. Three completed circuits do not meet that threshold.
A sheep offering remains due. Whether the Umrah itself has become invalid or must be repeated is answered separately by the following clause.