Ja'far bin Muhammad narrates from his father that the Prophet (peace and blessings be upon him) said about the aqiqah that Sayyidah Fatimah (may Allah be pleased with her) performed on behalf of Hasan and Husayn (may Allah be pleased with them both): "Send one leg of it to the midwife, eat and feed others, and do not break any of its bones."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19286
Sayyidah Umm Kurz (may Allah be pleased with her) says that the Messenger of Allah (peace and blessings be upon him) said: "For a boy, two equal goats, and for a girl, one goat, as aqiqah."
Ata says: The meat should be cut into joints, but no bone should be broken; it should be cooked, and at the time of slaughter one should say: 'Bismillah wallahu akbar, hadhihi aqiqatu fulan' (In the name of Allah, and Allah is the Greatest; this is the aqiqah of so-and-so). The meat should be cut into pieces, cooked with water and salt, and distributed among the neighbours.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19287