Musnad Ahmad 1153:716

Abu Salamah narrated to us, he said: Bakr bin Mudar informed us, he said: Musa bin Jubayr narrated to us, from Abu Umamah bin Sahl, he said: I and Urwah bin al-Zubayr entered upon Aisha one day. She said: "If you two had seen the Prophet of Allah, may Allah bless him and grant him peace, one day during the illness of his sickness." She said: "He had six dinars with me—Musa said: 'Or seven'—she said: 'The Prophet of Allah ordered me to distribute them.' She said: 'The pain of the Prophet of Allah, may Allah bless him and grant him peace, occupied me until Allah restored him to health.'" She said: "Then he asked me about them, and said: 'What did you do with the six?'—he said: 'Or the seven?'—I said: 'No, by Allah, your pain occupied me.' She said: 'So he called for them, then placed them in his palm, and said: 'What would the Prophet of Allah think if he were to meet Allah, the Mighty and Majestic, while these were with him?'"