(17) باب بَيَانِ وُجُوهِ الإِحْرَامِ وَأَنَّهُ يَجُوزُ إِفْرَادُ الْحَجِّ وَالتَّمَتُّعِ وَالْقِرَانِ وَجَوَازِ إِدْخَالِ الْحَجِّ عَلَى الْعُمْرَةِ وَمَتَى يَحِلُّ الْقَارِنُ مِنْ نُسُكِهِ
`A'isha (Allah be pleased with her) said:
We set out with the Messenger of Allah (ﷺ) just at the appearance of the new moon of Dhul- Hijja. We had no other intention but that of performing the Hajj, whereupon the Messenger of Allah (ﷺ) said: He who among you intends to put on Ihram for `Umra should do so for `Umra. The rest of the hadith is the same.
Reference: Sahih Muslim 1211 f
In-book reference: Book 15, Hadith 124
USC-MSA web (English) reference(deprecated numbering scheme): Book 7, Hadith 2769