Sunan an-Nasa'i
Sunan an-Nasa'i 3197
أَخْبَرَنِي إِبْرَاهِيمُ بْنُ يَعْقُوبَ، قَالَ حَدَّثَنَا ابْنُ أَبِي مَرْيَمَ، قَالَ أَنْبَأَنَا سُفْيَانُ، قَالَ حَدَّثَنِي عَمْرُو بْنُ دِينَارٍ، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ تُوُفِّيَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَعِنْدَهُ تِسْعُ نِسْوَةٍ يُصِيبُهُنَّ إِلاَّ سَوْدَةَ فَإِنَّهَا وَهَبَتْ يَوْمَهَا وَلَيْلَتَهَا لِعَائِشَةَ .
Ibrahim ibn Yaqub informed me; he said: Ibn Abi Maryam narrated to us; he said: Sufyan informed us; he said: Amr ibn Dinar narrated to me, from Ata, from Ibn Abbas, who said: When the Messenger of Allah (peace and blessings of Allah be upon him) died, he had nine wives with whom he shared his time, except Sawdah, for she had given her day and night to Aishah.
Translation notes
Sawdah is named as having relinquished her day and night in favor of Aishah.