فَإِذَا حَلَقَ يَوْمَ النَّحْرِ فَقَدْ حَلَّ مِنَ الْإِحْرَامَيْنِ
Translation: When he shaves on the Day of Sacrifice, the release connected to the two ihrams takes place.
The Day of Sacrifice is 10 Dhu al-Hijjah. This clause refers to a pilgrim whose Umrah ihram continued because of a brought offering, and Hajj was added. It does not cancel other Hajj requirements or the distinct stages of release.