Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
ahmad:20738 – Sufyān b. ʿUyaynah > Hārūn b. Riʾāb > Ibn al-Shikhhīr > a man Man Banī Uqaysh

[Machine] With him is the book of the Prophet ﷺ . He said, "Fasting for three days of the month alleviates the heat of the chest."  

أحمد:٢٠٧٣٨ – حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ هَارُونَ بْنِ رِئَابٍ عَنِ ابْنِ الشِّخِّيرِ عَنْ رَجُلٍ مَنْ بَنِي أُقَيْشٍ قَالَ

مَعَهُ كِتَابُ النَّبِيِّ ﷺ قَالَ صِيَامُ ثَلَاثَةِ أَيَّامٍ مِنَ الشَّهْرِ يُذْهِبْنَ وَحَرَ الصَّدْرِ  

See similar narrations below:

Collected by Aḥmad, Ṭabarānī, Suyūṭī
ahmad:23070 – Wakīʿ > Qurrah b. Khālid > Yazīd b. ʿAbdullāh b. al-Shikhhīr > al-Aʿrābī

" I heard the Messenger of Allah say: 'The month of patience ( Ramadan) and three days of each month is fasting for a lifetime."' (Sahih). (Using translation from Nasāʾī 2408)   

أحمد:٢٣٠٧٠ – حَدَّثَنَا وَكِيعٌ حَدَّثَنِي قُرَّةُ بْنُ خَالِدٍ عَنْ يَزِيدَ بْنِ عَبْدِ اللهِ بْنِ الشِّخِّيرِ عَنِ الْأَعْرَابِيِّ قَالَ

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ صَوْمُ شَهْرِ الصَّبْرِ وَثَلَاثَةِ أَيَّامٍ مِنْ كُلِّ شَهْرٍ يُذْهِبْنَ وَحَرَ الصَّدْرِ  

tabarani:8984 – ʿAlī b. ʿAbd al-ʿAzīz > Abū Nuʿaym > al-Masʿūdī > Yaḥyá b. ʿAmr b. Salamah from his father > ʿAbdullāh

[Machine] "Fasting for three days every month relieves the heat of the chest."  

الطبراني:٨٩٨٤ – حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ الْعَزِيزِ ثنا أَبُو نُعَيْمٍ ثنا الْمَسْعُودِيُّ عَنْ يَحْيَى بْنِ عَمْرِو بْنِ سَلَمَةَ عَنْ أَبِيهِ عَنْ عَبْدِ اللهِ قَالَ

«صَوْمُ ثَلَاثَةِ أَيَّامٍ مِنْ كُلِّ شَهْرٍ يُذْهِبْنَ وَحَرَ الصَّدْرِ»  

suyuti:4-2153b – ʿAli
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السيوطي:٤-٢١٥٣b –

"عَنْ عَلِىٍّ قَالَ: صَوْمُ ثَلَاثَةِ أَيَّامٍ مِنْ كُلِّ شَهْرٍ صَوْمُ الدَّهْرِ وَهِى تُذْهِبْنَ وَحَرَ الصَّدْرِ".  

ابن جرير