Hadith 8:158
Abu Bakr narrated to us, he said: Jarir narrated to us, from Mansur and Layth, from Mujahid, regarding the man who combines Hajj and Umrah and is then prevented (by an obstacle): He said: He sends a sacrificial animal (hady) by which he becomes lawful (exits the state of Ihram). He shall come in the following year to perform what he had entered into Ihram for.
حدثنا أبو بكر قال ثنا جرير عن منصور وليث عن مجاهد في الرجل جمع بين الحج والعمرة فيحصر قال يبعث بهدي يحل به يجيء من قابل بما كان أهل به