It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) offered the aqiqah on behalf of Sayyiduna al-Hasan and Sayyiduna al-Husayn (may Allah be pleased with them both).
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 2554