Musnad Ahmad 1167:43

'Abd al-Razzaq narrated to us, he said: Ibn Jurayj informed us, he said: It was narrated to me from Asma' bint Abi Bakr, that she said: "The Prophet, may Allah bless him and grant him peace, was alarmed on the day the sun eclipsed, so he took a shield [or garment] until he caught up with his cloak. He stood with the people for a long standing; he would stand, then he would bow." She said: "I began to look at the woman who was older than me standing, and at the woman who was sicker than me standing, and I said: 'I am more entitled to be patient with the length of the standing than you.'" Ibn Jurayj said: Mansur ibn 'Abd al-Rahman narrated to me, from his mother Safiyyah bint Shaybah, from Asma' bint Abi Bakr, that the Prophet, may Allah bless him and grant him peace, was alarmed.