The Book of Fasting
22/64. Chapter:
Fasting is Waived for Menstruating Women
Sunan an-Nasai
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، قَالَ سَمِعْتُ أَبَا سَلَمَةَ، يُحَدِّثُ عَنْ عَائِشَةَ، قَالَتْ إِنْ كَانَ لَيَكُونُ عَلَىَّ الصِّيَامُ مِنْ رَمَضَانَ فَمَا أَقْضِيهِ حَتَّى يَجِيءَ شَعْبَانُ .
It was narrated that 'Aishah said: "I would own fasts from Ramadan and I would not make them up until Shaban came."
Reference : Sunan an-Nasa'i 2319In-book reference : Book 22, Hadith 230English translation : Vol. 3, Book 22, Hadith 2321