Muslim al-Qurri heardlbn 'Abbas (Allah be pleased with them) saying that Allah's Apostle (ﷺ) entered into the state of Ihram for Umra and his Companions for Hajj. Neither Allah's Apostle (ﷺ) nor those among his Companions who had brought sacrificial animals with them put off Ihram, whereas the rest (of the pilgrims) did so. Talha b. Ubaidullah was one of those who had brought the sacrificial animals along with them so he did not put off Ihram.
وَحَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، حَدَّثَنَا مُسْلِمٌ الْقُرِّيُّ، سَمِعَ ابْنَ عَبَّاسٍ، - رضى الله عنهما - يَقُولُ أَهَلَّ النَّبِيُّ صلى الله عليه وسلم بِعُمْرَةٍ وَأَهَلَّ أَصْحَابُهُ بِحَجٍّ فَلَمْ يَحِلَّ النَّبِيُّ صلى الله عليه وسلم وَلاَ مَنْ سَاقَ الْهَدْىَ مِنْ أَصْحَابِهِ وَحَلَّ بَقِيَّتُهُمْ فَكَانَ طَلْحَةُ بْنُ عُبَيْدِ اللَّهِ فِيمَنْ سَاقَ الْهَدْىَ فَلَمْ يَحِلَّ .
Muslim
The Book of Pilgrimage • Hadith 215