This is the 'Umra of which we have taken advantage. So he who has not the sacrificial animal with him should get out of the state of Ihram completely, for 'Umra has been incorporated in Hajj until the Day of Resurrection, (Using translation from Muslim 1241)
أَنَّ النَّبِيَّ ﷺ كَانَ يَقُولُ «هَذِهِ عُمْرَةٌ اسْتَمْتَعْنَا بِهَا فَمَنْ لَمْ يَكُنْ عِنْدَهُ هَدْيٌ فَلْيَحْلِلْ الْحِلَّ كُلَّهُ فَقَدْ دَخَلْتِ الْعُمْرَةُ فِي الْحَجِّ إِلَى يَوْمِ الْقِيَامَةِ»