This hadith has been reported on the authority of A'isha through another chain of transmitters.
Sahih Muslim Book 15, Hadith 113
← Previous Hadith Messenger of Allah, I intend to perform Hajj, but I am ill. Thereupon Allah's Apostle (ﷺ) said: Enter Into the state of Ihram on condition that you would abandon it when Allah would detain you.

Sahih Muslim Book 15, Hadith 112 Next Hadith → I am an ailing woman but I intend to perform Hajj; what you command me (to do)? He (the Holy Prophet) said: Enter into the state of Ihram (uttering these words) of condition: I would be free from it when Thou wouldst detain me. 'He (the narrator) said: But she was able to complete (the Hajj without breaking down).

Sahih Muslim Book 15, Hadith 114