It wasnarrated from Umm Salamah that the Messenger of Allah (ﷺ)said:
"Whoever among you sees the new crescent of Dhul-Hijjah andwantsto offer a sacrifice, let him not take anything from his hair ornails." (JA)
English reference (JA): Vol. 4, Book 26, Hadith 3150 (JA)
Arabic reference (JA): Book 26, Hadith 3270 (JA)