"We would menstruate during the time of the Messenger of Allah, then when we became pure we were ordered to make up the fasts but we were not ordered to make up the Salat." (Using translation from Tirmidhī 787)   

«أَحَرُورِيَّةٌ أَنْتِ؟ قَدْ كُنَّا نَحِيضُ عَلَى عَهْدِ رَسُولِ اللهِ ﷺ ثُمَّ نَطْهُرُ فَيَأْمُرُنَا بِقَضَاءِ الصَّوْمِ وَلَا يَأْمُرُنَا بِقَضَاءِ الصَّلَاةِ»  

"I would own fasts from Ramadan and I would not make them up until Shaban came." (Using translation from Nasāʾī 2319)  

«إِنْ كَانَ لَيَكُونُ عَلَيَّ الصِّيَامُ مِنْ رَمَضَانَ فَمَا أَقْضِيهِ حَتَّى يَجِيءَ شَعْبَانُ»