Sahih Muslim | Book 7 | Hadith Number 2757

Narrated by 'Aisha (Allah be pleased with her)
'Aisha (Allah be pleased with her) reported that Allah's Apostle (may peace be upon him) went (to the house of) Duba'a bint al-Zubair b. Abd al-Muttalib. She said: Messenger of Allah, I intend to perform Hajj, but I am ill. Thereupon Allah's Apostle (may peace be upon him) said: Enter Into the state of Ihram on condition that you would abandon it when Allah would detain you.