What was narrated concerning fasting three days of each month Sunan Ibn Majah 1709

Arabic hadith text
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا غُنْدَرٌ، عَنْ شُعْبَةَ، عَنْ يَزِيدَ الرِّشْكِ، عَنْ مُعَاذَةَ الْعَدَوِيَّةِ، عَنْ عَائِشَةَ، أَنَّهَا قَالَتْ: كَانَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلمـ يَصُومُ ثَلاَثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ ‏.‏ قُلْتُ مِنْ أَيِّهِ؟ قَالَتْ: لَمْ يَكُنْ يُبَالِي مِنْ أَيِّهِ كَانَ ‏.‏
Translation
It wasnarrated from Mu’adhah Al-‘Adawiyyah that ‘Aishah said

“TheMessenger of Allah (ﷺ) used to fast three days of each month.” Isaid: “Which were they?” She said: “He did not care which daystheywere.”