Sahih Muslim | Book 7 | Hadith Number 2777

Narrated by 'Aisha (Allah be pleased with her)
'Aisha (Allah be pleased with her) said: Some among us put on Ihram for Hajj alone (Hajj Mufrad); some of us for Hajj and Umra together (Qiran), and some of us for Tamattal (first for Umra and after completing it for Haii).