Sayyiduna Abu Qatadah al-Ansari (may Allah be pleased with him) said: I saw the Messenger of Allah (peace and blessings be upon him) leading the people in prayer while Umamah bint Abi al-As was on his (peace and blessings be upon him) shoulder. When he (peace and blessings be upon him) prostrated, he would put her down.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19278