Whoever is not able to perform the Tawaf of Arrival (Tawaful-Qudum), what must he do?
Question :
Whoever is not able to perform the Tawaf of Arrival (Tawaful-Qudum) because he did not reach Makkah until 'Asr time on the day of 'Arafah (the 9th of Thul-Hijjah), should he go to 'Arafat immediately without passing by the Haram, and what must he do?
Answer:
He has the choice. If he wishes, he may enter Makkah and perform Tawaf and Sa'y, remain in his Ihram, go out to 'Arafat and stand there as much as Allâh wishes, even if it is at night. Then he may leave to Muzdalifah to spend the night there. Also, if he wishes, he may go directly to 'Arafat and stand there until sunset, then set out to Muzdalifah with the people, pray the Maghrib and 'Isha' prayers there and spend the night there. Then he may perform Tawaf and Sa'y after that on the day of Sacrifice (the 10th of Thul-Hijjah) or after it, and there is no sin on him for that, nor is he required to slaughter an animal if he assumed Ihram for Hajj only. However, if he assumed Ihram for Hajj and Umrah together, he must sacrifice an animal of Tamattu', which is a seventh of a camel or a seventh of a cow or a two-year-old goat or a year-old sheep. He slaughters it in Mina or in Makkah, and he eats from it and gives some of it away in charity. This is due to Allâh's Statement:
"That they may witness things that are of benefit to them (i.e., reward of Hajj in the Hereafter, and also some worldly gain from trade), and mention the Name of Allah on appointed days (i.e., 10th, 11th, 12th and 13th days of Thul-Hijjah), over the beast of cattle that He has provided for them (for sacrifice). Then eat thereof and feed therewith the poor who have a very hard time."
Source:
Ash-Shaykh Ibn Baz
Fatawa Islamiyah, Vol. 4 Pages 184-185