The ruling on combining Hajj with 'Umrah

Question:
Allah has informed you how combining Hajj with 'Umrah is done and when it is not permissible?

Answer:
It is said that Hajj is combined with 'Umrah when a person enters the state of ihram for 'Umrah and, before he begins the tawaf of 'Umrah, he intends to combine Hajj with it. He enters ihram for 'Umrah from the miqat, then he intends to combine Hajj with it, and he becomes one who has combined them (qarin). There is no harm in doing this before he begins the tawaf. There is no harm. This is the issue.
The second issue is menstruation and childbirth. If a woman enters ihram for 'Umrah and then menstruation or post-natal bleeding occurs, and then the Day of 'Arafah arrives while she has not become pure, she enters ihram for Hajj and combines it with the 'Umrah, becoming one who has combined them (qarin). Likewise, if a man enters ihram for 'Umrah and arrives in Makkah while ill, unable to perform the 'Umrah until the Day of 'Arafah arrives, he enters ihram for Hajj and combines it with the 'Umrah, becoming one who has combined them (qarin). Yes.