Yahya related to me from Malik from Yahya ibn Said from Abu Salama ibn Abd ar-Rahman that he heard A'isha, the wife of the Prophet ﷺ say, "I used to have to make up days from Ramadan and not be able to do them until Shaban came."
أَنَّهُ سَمِعَ عَائِشَةَ زَوْجَ النَّبِيِّ ﷺ تَقُولُ إِنْ كَانَ لَيَكُونُ عَلَىَّ الصِّيَامُ مِنْ رَمَضَانَ فَمَا أَسْتَطِيعُ أَصُومُهُ حَتَّى يَأْتِيَ شَعْبَانُ
If I had some part of the fast of Ramadan to make up, I would not be able to atone for it except in Sha'ban.
أَنَّهُ سَمِعَ عَائِشَةَ ؓ تَقُولُ إِنْ كَانَ لَيَكُونُ عَلَىَّ الصَّوْمُ مِنْ رَمَضَانَ فَمَا أَسْتَطِيعُ أَنْ أَقْضِيَهُ حَتَّى يَأْتِيَ شَعْبَانُ
“I heard ‘Aishah say: ‘I used to owe fasts from the month of Ramadan, and I would not make them up for until Sha’ban came.’”
سَمِعْتُ عَائِشَةَ تَقُولُ إِنْ كَانَ لَيَكُونُ عَلَىَّ الصِّيَامُ مِنْ شَهْرِ رَمَضَانَ فَمَا أَقْضِيهِ حَتَّى يَجِيءَ شَعْبَانُ