Ibn ‘Abbas reported the Prophet ﷺ as saying This is an ‘Umrah from which we have benefitted. Anyone who has brought sacrificial animal with him should take off ihram totally. ‘Umrah has been included in Hajj till the Day of Judgment. Abu Dawud said This is a munkar (uncommon) tradition. This is in fact the statement of Ibn ‘Abbas himself. (Using translation from Abū Dāʾūd 1790)   

عَنِ النَّبِيِّ ﷺ قَالَ «هَذِهِ عُمْرَةٌ اسْتَمْتَعْنَا بِهَا فَمَنْ لَمْ يَكُنْ مَعَهُ هَدْيٌ فَلْيَحِلَّ الْحِلَّ كُلَّهُ فَقَدْ دَخَلَتِ الْعُمْرَةُ فِي الْحَجِّ إِلَى يَوْمِ الْقِيَامَةِ»  

Ar-Rabi' ibn Saburah said on the authority of his father (Saburah): We went out along with the Messenger of Allah ﷺ till we reached Usfan, Suraqah ibn Malik al-Mudlaji said to him: Messenger of Allah, explain to us like the people as if they were born today. He said: Allah, the Exalted, has included this umrah in your hajj. When you come (to Mecca), and he who goes round the House (the Ka'bah), and runs between as-Safa and al-Marwah, is allowed to take off ihram except he who has brought the sacrificial animals with him. (Using translation from Abū Dāʾūd 1801)   

أَنَّهُمْ سَارُوا مَعَ النَّبِيِّ ﷺ حَتَّى بَلَغُوا عُسْفَانَ فَقَالَ لَهُ رَجُلٌ مِنْ بَنِي مُدْلِجٍ يُقَالُ لَهُ مَالِكُ بْنُ سُرَاقَةَ أَوْ سُرَاقَةُ بْنُ مَالِكٍ اقْضِ لَنَا قَضَاءَ قَوْمٍ وُلِدُوا الْيَوْمَ قَالَ «إِنَّ اللَّهَ قَدْ أَدْخَلَ عَلَيْكُمْ فِي حَجِّكُمْ هَذَا عُمْرَةً فَإِذَا أَنْتُمْ قَدِمْتُمْ فَمَنْ تَطَوَّفَ بِالْبَيْتِ وَبِالصَّفَا وَالْمَرْوَةِ فَقَدْ حَلَّ إِلَّا مَنْ كَانَ مَعَهُ هَدْيٌ»