Sahih Bukhari Volume 003, Book 028, Hadith Number 037.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 28. Pilgrims Prevented from Completing the Pilgrimmage
Narated By Salim : (Abdullah) bin 'Umar used to say, "Is not (the following of) the tradition of Allah's Apostle sufficient for you? If anyone of you is prevented from performing Hajj, he should perform the Tawaf of the Ka'ba and between As-Safa and Al-Marwa and then finish the Ihram and everything will become legal for him which was illegal for him (during the state of Ihram) and he can perform Hajj in a following year and he should slaughter a Hadi or fast in case he cannot afford the Hadi."