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:1227 – ʿAbdullāh > Isḥāq b. Ismāʿīl > Jarīr And Muḥammad b. Fuḍayl b. Ghazwān > Muṭarrif > Abū Isḥāq > ʿĀṣim b. Ḍamrah > ʿAlī

The Messenger of Allah ﷺ did not offer any prayer after which (nafl) prayer may be offered, but he prayed two rakʿahs after it.  

أحمد:١٢٢٧ – حَدَّثَنَا عَبْدُ اللهِ حَدَّثَنَا إِسْحَاقُ بْنُ إِسْمَاعِيلَ حَدَّثَنَا جَرِيرٌ وَمُحَمَّدُ بْنُ فُضَيْلِ بْنِ غَزْوَانَ عَنْ مُطَرِّفٍ عَنْ أَبِي إِسْحَاقَ عَنْ عَاصِمِ بْنِ ضَمْرَةَ عَنْ عَلِيٍّ قَالَ

كَانَ رَسُولُ اللهِ ﷺ لَا يُصَلِّي صَلاةً يُصَلَّى بَعْدَهَا إِلا صَلَّى بَعْدَهَا رَكْعَتَيْنِ  

See similar narrations below:

Collected by Aḥmad, Nasāʾī's Kubrá
ahmad:1217 – ʿAbdullāh > Abū Khaythamah > Jarīr And Muḥammad b. Fuḍayl > Muṭarrif > Abū Isḥāq > ʿĀṣim b. Ḍamrahaʿan ʿAlī

The Prophet ﷺ did not offer any (obligatory) prayer but he prayed two rakʿahs after it.  

أحمد:١٢١٧ – حَدَّثَنَا عَبْدُ اللهِ حَدَّثَنِي أَبُو خَيْثَمَةَ حَدَّثَنَا جَرِيرٌ وَمُحَمَّدُ بْنُ فُضَيْلٍ عَنْ مُطَرِّفٍ عَنْ أَبِي إِسْحَاقَ عَنْ عَاصِمِ بْنِ ضَمْرَةَعَنْ عَلِيٍّ قَالَ

كَانَ النَّبِيُّ ﷺ لَا يُصَلِّي صَلاةً إِلا صَلَّى بَعْدَهَا رَكْعَتَيْنِ  

nasai-kubra:344 – Muḥammad b. Qudāmah > Jarīr > Muṭarrif > Abū Isḥāq > ʿĀṣim > ʿAlī

The Prophet ﷺ did not offer any (obligatory) prayer but he prayed two rakʿahs after it. (Using translation from Aḥmad 1217)   

الكبرى للنسائي:٣٤٤ – أَخْبَرَنَا مُحَمَّدُ بْنُ قُدَامَةَ عَنْ جَرِيرٍ عَنْ مُطَرِّفٍ عَنْ أَبِي إِسْحَاقَ عَنْ عَاصِمٍ عَنْ عَلِيٍّ قَالَ

كَانَ رَسُولُ اللهِ ﷺ «لَا يُصَلِّي صَلَاةً يُصَلِّي بَعْدَهَا إِلَّا صَلَّى رَكْعَتَيْنِ»