The author of this book (may Allah سبحانه وتعالى have mercy on him) commented: This refers to the Umrah Mufradah (independent Umrah). However, as for the Umrah that is part of Tamattu' (Hajj combined with Umrah), it must precede the Hajj; it is not permissible to begin with Hajj before it. The only exception is if the Mutamatti' (one performing Tamattu') does not arrive in time for the night of Arafah. In that case, he begins with Hajj and performs the Umrah afterward.