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.
bayhaqi:4866al-ʿAlāʾ b. al-Musayyab > Ḥabīb b. Abū Thābit > Ibn ʿAbbās

[Machine] The Prophet ﷺ prayed the Witr (an odd-numbered prayer) with three units, in which he would make supplications before the bowing. Abu Nasr ibn Qatada narrated to us, who was informed by Abu al-Hasan Muhammad ibn al-Hasan al-Sarraj, who was informed by Mutayyan, who was informed by Abd al-Rahman ibn Yunus al-Raqqi, who was informed by Ata ibn Muslim al-Halabi, who mentioned it. Ata ibn Muslim is the only one who narrated this, and he is weak.  

البيهقي:٤٨٦٦وَرَوَى عَطَاءُ بْنُ مُسْلِمٍ عَنِ الْعَلَاءِ بْنِ الْمُسَيَّبِ عَنْ حَبِيبِ بْنِ أَبِي ثَابِتٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

أَوْتَرَ النَّبِيُّ ﷺ بِثَلَاثٍ قَنَتَ فِيهَا قَبْلَ الرُّكُوعِ أَخْبَرَنَاهُ أَبُو نَصْرِ بْنُ قَتَادَةَ أنبأ أَبُو الْحَسَنِ مُحَمَّدُ بْنُ الْحَسَنِ السَّرَّاجُ ثنا مُطَيَّنٌ ثنا عَبْدُ الرَّحْمَنِ بْنُ يُونُسَ الرَّقِّيُّ ثنا عَطَاءُ بْنُ مُسْلِمٍ الْحَلَبِيُّ فَذَكَرَهُ وَهَذَا يَنْفَرِدُ بِهِ عَطَاءُ بْنُ مُسْلِمٍ وَهُوَ ضَعِيفٌ