A’ishah reported the Apostle of Allaah(ﷺ) as saying “If I had known beforehand about my affair what I have come to know later, I would not have brought the sacrificial animals with me. The narrator Muhammad(bin Yahya) said “ I think he(’Uthman bin ‘Umar) said and I would have taken off my ihram with those who have put their ihram after performing ‘Umrah.He said “By this he intended that all the people might have performed equal rites(of Hajj)
حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى بْنِ فَارِسٍ، حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ، أَخْبَرَنَا يُونُسُ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ لَوِ اسْتَقْبَلْتُ مِنْ أَمْرِي مَا اسْتَدْبَرْتُ لَمَا سُقْتُ الْهَدْىَ " . قَالَ مُحَمَّدٌ أَحْسِبُهُ قَالَ " وَلَحَلَلْتُ مَعَ الَّذِينَ أَحَلُّوا مِنَ الْعُمْرَةِ " . قَالَ أَرَادَ أَنْ يَكُونَ أَمْرُ النَّاسِ وَاحِدًا .
AbuDaud
The Rites of Hajj (Kitab Al-Manasik Wa'l-Hajj) • Hadith 1784