مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 3230
Marriage
Sharing Visits to one’s Wives Equally - Section 1
وَعَنْ عَائِشَةَ أَنَّ سَوْدَةَ لَمَّا كَبِرَتْ قَالَتْ: يَا رَسُولَ اللَّهِ قَدْ جَعَلْتُ يَوْمِي مِنْكَ لِعَائِشَةَ فَكَانَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُقَسَّمُ لِعَائِشَةَ يَوْمَيْنِ يَوْمَهَا وَيَوْم سَوْدَة
‘A’isha told that when Sauda became old she said, “Messenger of God, I appoint to ‘A'isha the day you visit me” (Cf. the last tradition in this chapter). So God’s Messenger allotted two days to ‘A’isha, hers and Sauda’s. (Bukhari and Muslim.)
Mishkat al-Masabih, 3230مُتَّفَقٌ عَلَيْهِ (الألباني)