According to this Hadith, one who intends to sacrifice animal on `Eid Al-Adha, should abstain from paring nails, having a hair cut, and shaving the armpits and the private parts so that his sacrifice is in accordance with the Sunnah. One should have a hair cut on the tenth of Dhul-Hijjah after having offered the sacrifice. Some Ahadith tell us that if a person who does not sacrifice an animal on `Eid Al-Adha but pares his nails and has his hair cut on the tenth Dhul-Hijjah will be given by Allah the reward of sacrifice.