Yazidbin 'Abdul-Muzani narrated that the Prophet (ﷺ) said:
"Offeran'Aqiqah for the boy, but do not smear his head with blood." (RU)
English reference (RU): Vol. 4, Book 27, Hadith 3166 (RU)
Arabic reference (RU): Book 27, Hadith 3286 (RU)