It was narrated from Abu Bakr (RA) bin Abdullah bin Zubair from his grandmother - he (the narrator) said: "I do not know if it was Asma bint Abu Bakr (RA) or Suda bint Awf - that the Messenger of Allah ﷺ entered upon Dub"-ah bint Abdul-Muttalib and said: "What is keeping you, 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 the condition that you will exit Ihram from the point where you are prevented." (Sahih)