Musnad Ahmad 1168:8

Uthman ibn Umar narrated to us, he said: Yunus informed us, from al-Zuhri, from Ubayd Allah ibn Abd Allah ibn Utbah, that Umm Qays bint Mihsan, one of the Banu Asad ibn Khuzaymah, and she was among the first emigrant women who pledged allegiance to the Messenger of Allah, may Allah bless him and grant him peace, said: She informed me that she brought to the Messenger of Allah, may Allah bless him and grant him peace, a son of hers who had not yet reached the age of eating food. He mentioned the hadith, and he said: "Why do you press the throats of your children?"