Hadith 8:1523
Abu Bakr narrated to us, he said: Hafs narrated to us, from Layth, from Tawus, who said: When the sacrificial camel reaches the Sacred Precinct (al-Haram), it has fulfilled its obligation.
حدثنا أبو بكر قال حدثنا حفص عن ليث عن طاوس قال إذا بلغت البدنة الحرم فقد وفت