Aishah narrated from Wahb's daughter - and she is Judamah - who said:
"I heard the Messenger of Allah (S.A.W) saying: 'I wanted to prohibit Al-Ghilah, but the Persians and Romans did it, and they did not kill their children.'" (RU)
English reference (RU): Vol. 4, Book 2, Hadith 2076 (RU)
Arabic reference (RU): Book 28, Hadith 2220 (RU)