Sayyidah Judamah bint Wahb al-Asadiyyah (may Allah be pleased with her) said: I heard the Messenger of Allah (peace and blessings be upon him) say: "I intended to forbid ghilah, but I saw that the Persians and the Romans practise ghilah with their children, and it does not harm them at all."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20906