The Prophet ﷺ and his companions reached Mecca in the morning of the 4th Dhul-Hijja reciting Talbiya (O Allah! We are obedient to your orders, we respond 4 to your call) . . . intending to perform Hajj. The Prophet ﷺ ordered his companions to assume the lhram for Umra instead of Hajj, excepting those who had Hadi (sacrifice) with them.
قَدِمَ النَّبِيُّ ﷺ وَأَصْحَابُهُ لِصُبْحِ رَابِعَةٍ يُلَبُّونَ بِالْحَجِّ فَأَمَرَهُمْ أَنْ يَجْعَلُوهَا عُمْرَةً إِلاَّ مَنْ مَعَهُ الْهَدْىُ
Messenger of Allah ﷺ came along with his Companions when four days had passed out of ten days (of Dhu'l-Hijja) and they were pronouncing Talbiya for Hajj, and he (the Holy Prophet) commanded them to change (this Ihram) into that of 'Umra.
قَدِمَ النَّبِيُّ ﷺ وَأَصْحَابُهُ لأَرْبَعٍ خَلَوْنَ مِنَ الْعَشْرِ وَهُمْ يُلَبُّونَ بِالْحَجِّ فَأَمَرَهُمْ أَنْ يَجْعَلُوهَا عُمْرَةً
"The Messenger of Allah and his Companions came on the morning of the fourth day (of Dhul-Hijjah), reciting the Talbiyah for Hajj, and the Messenger of commanded them to exit Ihram".
قَدِمَ رَسُولُ اللَّهِ ﷺ وَأَصْحَابُهُ لِصُبْحِ رَابِعَةٍ وَهُمْ يُلَبُّونَ بِالْحَجِّ فَأَمَرَهُمْ رَسُولُ اللَّهِ ﷺ أَنْ يَحِلُّوا
[Machine] I heard Ibn Abbas say, "The Messenger of Allah ﷺ and his companions arrived at Rabigh in the morning, prepared for Hajj. The Messenger of Allah ﷺ ordered them to perform Umrah, except for those who had brought their animal sacrifices (Hadi) with them." He added, "The men wore Ihram garments, their heads were freshly shaved, and the women were married."
سَمِعْتُ ابْنَ عَبَّاسٍ يَقُولُ قَدِمَ رَسُولُ اللهِ ﷺ وَأَصْحَابُهُ لِصُبْحِ رَابِعَةٍ مُهِلِّينَ بِالْحَجِّ فَأَمَرَهُمْ رَسُولُ اللهِ ﷺ أَنْ يَجْعَلُوهَا عُمْرَةً إِلا مَنْ كَانَ مَعَهُ الْهَدْيُ قَالَ فَلُبِسَتِ الْقُمُصُ وَسَطَعَتْ الْمَجَامِرُ وَنُكِحَتِ النِّسَاءُ
[Machine] The Messenger of Allah ﷺ and his companions arrived for the fourth dawn prayer, preparing for the pilgrimage. He commanded them to make it a lesser pilgrimage (Umrah). This amazed them, and they asked, "O Messenger of Allah, which kind of Umrah?" He said, "All kinds of Umrah."
قَدِمَ رَسُولُ اللهِ ﷺ وَأَصْحَابُهُ لِصَبِيحَةِ رَابِعَةٍ مُهِلِّينَ بِالْحَجِّ فَأَمَرَهُمْ أَنْ يَجْعَلُوهَا عُمْرَةً فَتَعَاظَمَ ذَلِكَ عِنْدَهُمْ فَقَالُوا يَا رَسُولَ اللهِ أَيُّ الْحِلُّ؟ قَالَ «الْحِلُّ كُلُّهُ»
"The Messenger of Allah and his Companions came on the morning of the fourth day (of Dhul-Hijjah), reciting the Talbiyah for Hajj, and the Messenger of commanded them to exit Ihram". (Using translation from Nasāʾī 2870)
قَدِمَ رَسُولُ اللهِ ﷺ وَأَصْحَابُهُ لِصُبْحِ رَابِعَةٍ وَهُمْ يُلَبُّونَ بِالْحَجِّ «فَأَمَرَهُمْ رَسُولُ اللهِ ﷺ أَنْ يَحِلُّوا»