Hajj al-Tamatt'u (Interrupted)
This is the easiest way of performing Hajj as described below.
Hajj al-Qiran (Combined)
This denotes entering into ihram for both Umrah and Hajj at the same time, not taking it off until the day of sacrifice at Mina.
In Qiran one has to stick to the long-lasting restrictions of Ihram
Hajj al-Ifrad (Single)
This means entering into ihram only for the Hajj and taking it off only on the day of sacrifice.
People who come to Saudi Arabia from other countries usually perform Hajj al-Tamatt'u. The Ihram they wear on or before Miqat is for Umrah only and perform Umrah first, then they slip into their ordinary clothes and on 8 Zil Hijjah they put on Ihram for Hajj at their residence in Makkah and perform the rites of Hajj. It is taken off on the day of sacrifice. This article describes the procedure to perform Hajj al-Tamatt'u.