Sunan Sa'id

His saying, Exalted is He: {And complete the Hajj and Umrah for Allah. But if you are prevented, then [offer] what can be obtained with ease of sacrificial animals. And do not shave your heads until the sacrificial animal has reached its place of slaughter. And whoever among you is ill or has an ailment of the head [making shaving necessary must offer] a ransom of fasting or charity or sacrifice. And when you are secure, then whoever performs 'umrah [during the Hajj months] followed by Hajj [offers] what can be obtained with ease of sacrificial animals. But whoever cannot find [or afford such an animal]—then a fast of three days during Hajj and of seven when you have returned [home].}