Umm Kurz (may Allah be pleased with her) narrates: I heard the Messenger of Allah (peace and blessings be upon him) say: "Leave the birds settled in their nests." And I also heard him (peace and blessings be upon him) say: "For a boy, two sheep, and for a girl, one sheep (should be slaughtered); it does not matter to you whether they (the sheep) are male or female." This hadith has a sahih (authentic) chain, and they (the two Shaykhs) did not record it.

Amr bin Shu'ayb narrates from his father, from his grandfather (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) was asked about the 'aqiqah, and he (peace and blessings be upon him) said: "I do not like 'uquq (disobedience). Whoever among you has a child born to him and wishes to offer a sacrifice ('aqiqah) on its behalf, let him do so: for a boy, two sheep, and for a girl, one sheep (should be slaughtered)." This hadith has a sahih (authentic) chain, and they (the two Shaykhs) did not record it.

Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates: I heard the Messenger of Allah (peace and blessings be upon him) say: "With a boy there is an 'aqiqah, so shed blood on his behalf (slaughter an animal) and remove the harmful thing from him." Jarir said: When Imam Hasan al-Basri was asked about the harmful thing, he said: "It means the (birth) hair (of the head)." This hadith has a sahih (authentic) chain, and they (the two Shaykhs) did not record it.

Abdullah bin Buraydah narrates from his father (may Allah be pleased with him), who said: In the Jahiliyyah, when a boy was born to us, we would slaughter a sheep on his behalf, shave his head and smear his head with (the slaughtered animal's) blood. Then, when Islam came, (we changed the practice, and) when a boy was born to us we would slaughter a sheep, shave his head and smear his head with saffron. This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.