(17) باب بَيَانِ وُجُوهِ الإِحْرَامِ وَأَنَّهُ يَجُوزُ إِفْرَادُ الْحَجِّ وَالتَّمَتُّعِ وَالْقِرَانِ وَجَوَازِ إِدْخَالِ الْحَجِّ عَلَى الْعُمْرَةِ وَمَتَى يَحِلُّ الْقَارِنُ مِنْ نُسُكِهِ
Jabir b. Abdullah reported that the Messenger of Allah (ﷺ) ordered us to put on Ihram (again) as we proceeded towards Mina after we had put it off (i. e. 'on the 8th of Dhu'l-Hijja). So we pronounced Talbiya at al-Abtah.
Reference: Sahih Muslim 1214
In-book reference: Book 15, Hadith 150
USC-MSA web (English) reference(deprecated numbering scheme): Book 7, Hadith 2795