Must marriage be postponed, and marital relations avoided, until the Hajj is performed, based on a vow?

The questioner understands that she vowed to perform Hajj after the marriage contract but before the wedding, but she cannot fulfill it due to lack of sufficient funds and the approaching wedding date. In this case, she is unable to fulfill the vow at its appointed time. She must make it up whenever the means become available and her husband permits its performance. Scholars have differed regarding the necessity of an expiation for an oath (kaffarat yamin) for delaying the fulfillment of a vow, and the preferred and more cautious approach is to pay it.