Musnad Ahmad 1156:191

Rawh narrated to us, Sa’id narrated to us, from Qatadah, from ‘Abd Rabbih, from Abu ‘Iyad, from ‘Abd al-Rahman ibn al-Harith ibn Hisham, that Marwan ibn al-Hakam sent him to Umm Salamah and ‘Aishah, and he mentioned its meaning. Except that he said: Then ‘Aishah’s servant, Dhakwan Abu ‘Amr, met him, and he said: I met Nafi’, the servant of Umm Salamah.