Those who said he fasts them when he returns to his family

Sa'id bin al-Musayyib said: Whoever performs Umrah in Shawwal or Dhu al-Qa'dah, then stays there and also performs Hajj, is counted as one performing Hajj al-Tamattu'. Whatever sacrificial animal (hady) is easily available is due on him; if he does not find a sacrificial animal, he should fast three days in the days of Hajj, and fast seven more after returning home.

Sayyiduna Ibn Umar (may Allah be pleased with them both) held that the one performing Hajj al-Tamattu' must sacrifice a camel or a cow; and if he does not find one, he should fast three days in the days of Hajj and seven after returning home.