It wasnarrated from Abu Bakr bin 'Abdullah bin Zubair from hisgrandmother – he (the narrator) said:
"I do not know if it wasAsma'bint Abu Bakr or Su'da bint 'Awf' – that theMessenger of Allah (ﷺ)entered upon Duba'ah bint 'Abdul-Muttaliband said: "What is keepingyou, O my aunt, from performing Hajj?"She said: "I am a sick woman,and I am afraid of being prevented(from completing Hajj)." He said:'Enter Ihram and stipulate thecondition that you will exit Ihram fromthe point where you areprevented.'"
English reference: Vol. 4, Book 25, Hadith 2936
Arabic reference: Book 25, Hadith 3049