Sayyidah Umm Bilal bint Hilal al-Aslamiyyah (may Allah be pleased with her), whose father was with the Prophet (peace and blessings be upon him) on the day of al-Hudaybiyah, narrates that the Messenger of Allah (peace and blessings be upon him) said: "Sacrifice a young lamb (jadha') of sheep, for it is permissible."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21859