It is narrated from Hazrat Aisha (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) commanded us that for a boy’s aqeeqah, two equal goats should be sacrificed, and for a girl, one goat. He also commanded that for every five, one goat should be sacrificed.
Hadith Referenceمسند احمد / مسند النساء / 25250
Hadith Gradingحکم دارالسلام:حديث العقيقة صحيح لغيره، وهذا إسناد ضعيف لأجل حفصة بنت عبدالرحمن