Chapter 2, Verse 197

And complete the Hajj and the ‘Umrah for the sake of Allah: but if you are kept back, then make whatever offering is easily available; and do not shave your heads until the offering reaches its destination. And whoever among you is sick or has an ailment of the head, should make an expiation either by fasting or almsgiving or a sacrifice. But when you are safe, then he, who would avail himself of the ‘Umrah together with the Hajj, should make whatever offering is easily obtainable. But such of you as cannot find an offering should fast three days during the Pilgrimage, and seven when you return home; these are ten complete. This is for him whose family does not reside near the Sacred Mosque. And fear Allah and know that Allah is severe in punishing.