Hadith 8:2322
Abu Bakr narrated to us, he said: Jarir narrated to us, from Mansur, from Sa'id ibn Jubayr, who said: Whoever performs any part of his Hajj before another, or shaves before he sacrifices, then upon him is blood (a sacrifice) which he must shed.
حدثنا أبو بكر قال حدثنا جرير عن منصور عن سعيد بن جبير قال من قدم من حجه شيئا قبل شيء أو حلق قبل أن يذبح فعليه دم يهريقه