Hadith 4366
´It was narrated from Ummm Salamah that the Prophet said:` "Whoever sees the new crescent of Dhul-Hijjah and wants to offer a sacrifice, let him not remove any of his hair or nails until he has offered the sacrifice."
Hadith 4367
´It was narrated that 'Amr bin Muslim said:` "Ibn Al-Musayyab told me that Umm Salamah, the wife of the Prophet told him that the Messenger of Allah said: 'Whoever wants to offer a sacrifice, let him not remove anything from his nails or cut his hair for the first ten days Dhul-Jijjah."'