Al-Kāfi - Volume 4 > Additional Salat (prayer) in the Month of Ramadan
Hadith #6

6ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ أَحْمَدَ بْنِ مُطَهَّرٍ أَنَّهُ كَتَبَ إِلَى أَبِي مُحَمَّدٍ (عَلَيْهِ السَّلاَم) يُخْبِرُهُ بِمَا جَاءَتْ بِهِ الرِّوَايَةُ أَنَّ النَّبِيَّ (صلَّى اللهُ عَلَيْهِ وَآلِه) كَانَ يُصَلِّي فِي شَهْرِ رَمَضَانَ وَغَيْرِهِ مِنَ اللَّيْلِ ثَلاثَ عَشْرَةَ رَكْعَةً مِنْهَا الْوَتْرُ وَرَكْعَتَا الْفَجْرِ فَكَتَبَ (عَلَيْهِ السَّلاَم) فَضَّ الله فَاهُ صَلَّى مِنْ شَهْرِ رَمَضَانَ فِي عِشْرِينَ لَيْلَةً كُلَّ لَيْلَةٍ عِشْرِينَ رَكْعَةً ثَمَانِيَ بَعْدَ الْمَغْرِبِ وَاثْنَتَيْ عَشْرَةَ بَعْدَ الْعِشَاءَ الآخِرَةِ وَاغْتَسَلَ لَيْلَةَ تِسْعَ عَشْرَةَ وَلَيْلَةَ إِحْدَى وَعِشْرِينَ وَلَيْلَةَ ثَلاثٍ وَعِشْرِينَ وَصَلَّى فِيهِمَا ثَلاثِينَ رَكْعَةً اثْنَتَيْ عَشْرَةَ بَعْدَ الْمَغْرِبِ وَثَمَانِيَ عَشْرَةَ بَعْدَ عِشَاءِ الآخِرَةِ وَصَلَّى فِيهِمَا مِائَةَ رَكْعَةٍ يَقْرَأُ فِي كُلِّ رَكْعَةٍ فَاتِحَةَ الْكِتَابِ وَقُلْ هُوَ الله أَحَدٌ عَشْرَ مَرَّاتٍ وَصَلَّى إِلَى آخِرِ الشَّهْرِ كُلَّ لَيْلَةٍ ثَلاثِينَ رَكْعَةً كَمَا فَسَّرْتُ لَكَ.

6. “Ali ibn Muhammad has narrated from Muhammad ibn Ahmad ibn Mutahhar who wrote to abu Muhammad, ‘Alayhi al-Salam, and informed him (the Imam) about a Hadith about the Holy Prophet, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause. It said that he (the Messenger of Allah) performed thirteen Rak‘at prayers including al-Witr and the two Rak‘at morning prayer during the nights in the month of Ramadan. He (the Imam) wrote, ‘May Allah break his (narrator’s) mouth. He (the Holy Prophet) during the month of Ramadan in the first twenty nights performed twenty Rak‘ats every night. He (the Messenger of Allah) performed eight Rak‘at after al-Maghrib prayer and twelve after ‘Isha’ (late evening) prayer. He would take a shower on the nineteenth, twenty-first and twenty-third nights. In those nights, he performed one hundred Rak‘at prayers in each Rak‘at, of which he read Chapter 1 and Chapter 112 of the Holy Quran ten times. He would perform thirty Rak‘at in the remaining nights to the end of the month, as I have explained for you.’”