Hasan al-Basri (may Allah have mercy on him) narrates: Sayyiduna Uthman bin Abi al-As (may Allah be pleased with him) was invited to a circumcision (gathering), and he refused to go. He was asked (the reason), and he said: "In the time of the Messenger of Allah (peace and blessings be upon him) we did not go to circumcisions (gatherings), nor were people invited to them."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8349