"I said: 'O Messenger of Allah, sometimes you fast, and you hardly ever break your hardly ever fast, except two days which, if you are fasting, you include them in your fast, and if you are not fasting, then you fast them on your own.' He said: 'Which two days?' I said: 'Monday and Thursday.' He said: 'Those are two days in which deeds are shown to the Lord of the worlds, and I like my deeds to be shown (to Him) when I am fasting."'  

قُلْتُ يَا رَسُولَ اللَّهِ إِنَّكَ تَصُومُ حَتَّى لاَ تَكَادَ تُفْطِرُ وَتُفْطِرُ حَتَّى لاَ تَكَادَ أَنْ تَصُومَ إِلاَّ يَوْمَيْنِ إِنْ دَخَلاَ فِي صِيَامِكَ وَإِلاَّ صُمْتَهُمَا قَالَ أَىُّ يَوْمَيْنِ قُلْتُ يَوْمَ الاِثْنَيْنِ وَيَوْمَ الْخَمِيسِ قَالَ ذَانِكَ يَوْمَانِ تُعْرَضُ فِيهِمَا الأَعْمَالُ عَلَى رَبِّ الْعَالَمِينَ فَأُحِبُّ أَنْ يُعْرَضَ عَمَلِي وَأَنَا صَائِمٌ  

[Machine] The Messenger of Allah ﷺ used to fast on certain days until it was said that he never breaks his fast, and he would break his fast on certain days until it was said that he hardly ever fasts, except for two days of the week, unless there was a fasting in the month, then he would fast those two days as well. He did not fast any month as much as he fasted in Sha'ban. I said, "O Messenger of Allah, you fast so much that it seems like you never break your fast, and you break your fast so much that it seems like you hardly ever fast. He said, "Which two days?" I said, "Monday and Thursday." He said, "Those are two days when deeds are shown (to Allah) and I love that my deeds should be shown (to Allah) when I am fasting." I said, "And I have never seen you fasting in any month as you fast in Sha'ban." He said, "That is a month between Rajab and Ramadan that people neglect, but it is a month in which deeds are raised up to the Lord of the worlds, and I love that my deeds should be raised up when I am fasting."  

كَانَ رَسُولُ اللهِ ﷺ يَصُومُ الْأَيَّامَ يَسْرُدُ حَتَّى يُقَالَ لَا يُفْطِرُ وَيُفْطِرُ الْأَيَّامَ حَتَّى لَا يَكَادَ أَنْ يَصُومَ إِلَّا يَوْمَيْنِ مِنَ الْجُمُعَةِ إِنْ كَانَ فِي صِيَامِهِ وَإِلَّا صَامَهُمَا وَلَمْ يَكُنْ يَصُومُ مِنْ شَهْرٍ مِنَ الشُّهُورِ مَا يَصُومُ مِنْ شَعْبَانَ فَقُلْتُ يَا رَسُولَ اللهِ إِنَّكَ تَصُومُ لَا تَكَادُ أَنْ تُفْطِرَ وَتُفْطِرَ حَتَّى لَا تَكَادَ أَنْ تَصُومَ إِلَّا يَوْمَيْنِ إِنْ دَخَلَا فِي صِيَامِكَ وَإِلَّا صُمْتَهُمَا قَالَ أَيُّ يَوْمَيْنِ؟ قَالَ قُلْتُ يَوْمُ الِاثْنَيْنِ وَيَوْمُ الْخَمِيسِ قَالَ ذَانِكَ يَوْمَانِ تُعْرَضُ فِيهِمَا الْأَعْمَالُ عَلَى رَبِّ الْعَالَمِينَ وَأُحِبُّ أَنْ يُعْرَضَ عَمَلِي وَأَنَا صَائِمٌ قَالَ قُلْتُ وَلَمْ أَرَكَ تَصُومُ مِنْ شَهْرٍ مِنَ الشُّهُورِ مَا تَصُومُ مِنْ شَعْبَانَ قَالَ ذَاكَ شَهْرٌ يَغْفُلُ النَّاسُ عَنْهُ بَيْنَ رَجَبٍ وَرَمَضَانَ وَهُوَ شَهْرٌ تُرْفَعُ فِيهِ الْأَعْمَالُ إِلَى رَبِّ الْعَالَمِينَفَأُحِبُّ أَنْ يُرْفَعَ عَمَلِي وَأَنَا صَائِمٌ  

"I said: 'O Messenger of Allah, sometimes you fast, and you hardly ever break your hardly ever fast, except two days which, if you are fasting, you include them in your fast, and if you are not fasting, then you fast them on your own.' He said: 'Which two days?' I said: 'Monday and Thursday.' He said: 'Those are two days in which deeds are shown to the Lord of the worlds, and I like my deeds to be shown (to Him) when I am fasting."' (Using translation from Nasāʾī 2358)  

قُلْتُ يَا رَسُولَ اللهِ إِنَّكَ تَصُومُ حَتَّى لَا تَكَادَ تُفْطِرُ وَتُفْطِرُ حَتَّى لَا تَكَادَ أَنْ تَصُومَ إِلَّا يَوْمَيْنِ إِذَا دَخَلَا فِي صِيَامِكَ وَإِلَّا صُمْتَهُمَا قَالَ «أَيُّ يَوْمَيْنِ؟» قُلْتُ يَوْمَ الِاثْنَيْنِ وَيَوْمَ الْخَمِيسِ قَالَ «ذَانِكَ يَوْمَانِ تُعْرَضُ فِيهِمَا الْأَعْمَالُ عَلَى رَبِّ الْعَالَمِينَ وَأُحِبُّ أَنْ يُعْرَضَ عَمَلِي وَأَنَا صَائِمٌ»