Maliks Muwatta Book 9, Hadith Number 84.

Section : Prayer in General.

Yahya related to me from Malik from Amir ibn Abdullah ibn az-Zubayr from Amr ibn Sulaym az-Zuraqi from Abu Qutada al-Ansari that the Messenger of Allah, may Allah bless him and grant him peace, used to pray carrying Umama, who was the daughter of his daughter Zaynab by Abu’l As ibn Rabia ibn Abd Shams. When he prostrated, he put her down, and when he got up he carried her.