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.
ahmad:10450Muʿtamir > Layth > Mujāhid And Shahr > Abū Hurayrah > Awṣānī Khalīlī Bithalāth > Lā Anām Illā > Witr > Aṣūm Thalāthah Ayyām from Kul Shahr

[Machine] "And that I fast three days from every month, and that I do not neglect the two rak'ahs of Duha prayer."  

أحمد:١٠٤٥٠حَدَّثَنَا مُعْتَمِرٌ عَنْ لَيْثٍ عَنْ مُجَاهِدٍ وَشَهْرٍ عَنْ أَبِي هُرَيْرَةَ قَالَ أَوْصَانِي خَلِيلِي بِثَلَاثٍ أَنْ لَا أَنَامَ إِلَّا عَلَى وِتْرٍ

وَأَنْ أَصُومَ ثَلَاثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ وَأَنْ لَا أَدَعَ رَكْعَتَيِ الضُّحَى  


See similar narrations below:

Collected by Dārimī
darimi:1786Yazīd b. Hārūn > al-ʿAwwām > Sulaymān b. Abū Sulaymān > Abū Hurayrah > Awṣānī Khalīlī Bithalāth Last Bitārikihin > Lā Anām Illā > Witr > Aṣūm Thalāthah Ayyām from Kul Shahr

[Machine] "He heard Abu Huraira say: 'My beloved friend advised me with three things that I will never neglect. Firstly, to never sleep except after praying Witr (an additional prayer performed after Isha prayer). Secondly, to fast three days every month. And thirdly, to never abandon the two Rak'ahs of Dhuha (a voluntary prayer performed in the morning).' "  

الدارمي:١٧٨٦أَخْبَرَنَا يَزِيدُ بْنُ هَارُونَ حَدَّثَنَا الْعَوَّامُ قَالَ حَدَّثَنِي سُلَيْمَانُ بْنُ أَبِي سُلَيْمَانَ

أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ يَقُولُ أَوْصَانِي خَلِيلِي بِثَلَاثٍ لَسْتُ بِتَارِكِهِنَّ أَنْ لَا أَنَامَ إِلَّا عَلَى وِتْرٍ وَأَنْ أَصُومَ ثَلَاثَةَ أَيَّامٍ مِنْ كُلِّ شَهْرٍ وَأَنْ لَا أَدَعَ رَكْعَتَيِ الضُّحَى