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ahmad:1261 – ʿAbdullāh > ʿUthmān b. Abū Shaybah > Saʿīd b. Khuthaym Abū Maʿmar al-Hilālī > Fuḍayl b. Marzūq > Abū Isḥāq > ʿĀṣim b. Ḍamrah > ʿAlī

The Prophet ﷺ used to pray eight rakʿahs of voluntary prayer and during the day twelve rakʿahs.  

أحمد:١٢٦١ – حَدَّثَنَا عَبْدُ اللهِ حَدَّثَنِي عُثْمَانُ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا سَعِيدُ بْنُ خُثَيْمٍ أَبُو مَعْمَرٍ الْهِلالِيُّ حَدَّثَنَا فُضَيْلُ بْنُ مَرْزُوقٍ عَنْ أَبِي إِسْحَاقَ عَنْ عَاصِمِ بْنِ ضَمْرَةَ عَنْ عَلِيٍّ قَالَ

كَانَ النَّبِيُّ ﷺ يُصَلِّي مِنَ التَّطَوُّعِ ثَمَانِيَ رَكَعَاتٍ وَبِالنَّهَارِ ثِنْتَيْ عَشْرَةَ رَكْعَةً  

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Collected by Aḥmad, Suyūṭī
ahmad:885 – Aswad > Sharīk > Abū Isḥāq > ʿĀṣim > ʿAlī

The Messenger of Allah ﷺ used to pray sixteen rakʿahs during the day.  

أحمد:٨٨٥ – حَدَّثَنَا أَسْوَدُ حَدَّثَنَا شَرِيكٌ عَنْ أَبِي إِسْحَاقَ عَنْ عَاصِمٍ عَنْ عَلِيٍّ قَالَ

كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي بِالنَّهَارِ سِتَّ عَشْرَةَ رَكْعَةً  

suyuti:4-439b – ʿLá
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السيوطي:٤-٤٣٩b –

"عن على قال: كان النبي ﷺ يُصلى من الليل التَّطَوع ثَمَانىَ ركعات، وبالنهار ثنتى عشرة ركعة".  

[ع] أبو يعلى [ض] ضياء المقدسي في مختاره