Hadith 8:1424
Abu Bakr narrated to us, he said: Waki' narrated to us, from 'Umar ibn Dharr, from Mujahid, who said: If he shaves before he slaughters his sacrificial animal, he said: Upon him is another sacrifice.
حدثنا أبو بكر قال حدثنا وكيع عن عمر بن ذر عن مجاهد قال إذا حلق قبل أن يذبح هديه قال عليه هدي آخر