* To ruin the hajj even before departing from home by having a desire to be called a haji, and using haraam or doubtful earnings for this ibadaah.
* To engage in improper acts while performing hajj e.g. to commit sins during the time that one is engaged in the performance of hajj, to have arguments, not to make tawbah (repentance).
* To complete the hajj and then to indulge in such deeds that defile the hajj, e.g. to neglect the fardh salaat, to indulge in sin etc.