Musnad Ahmad 1153:485

Yunus narrated to us, Fulayh narrated to us, from Salih ibn Ajlan, from Abbad ibn Abdullah ibn al-Zubayr, from Aisha, who said: When Sa’d died and his funeral procession was brought, Aisha ordered that it be passed by her. So it was carried through the mosque, and she prayed for him. That was disapproved of regarding her, so she said: "How quick the people are to speak! The Messenger of Allah (peace and blessings of Allah be upon him) did not pray over Ibn Bayda except in the mosque."