Al-Kāfi

Hadith 1835
quranrepentance
3ـ مُحَمَّدُ بْنُ يَحْيَى بِإِسْنَادِهِ رَفَعَهُ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ مَنْ صَلَّى رَكْعَتَيْنِ بِقُلْ هُوَ الله أَحَدٌ فِي كُلِّ رَكْعَةٍ سِتِّينَ مَرَّةً انْفَتَلَ وَلَيْسَ بَيْنَهُ وَبَيْنَ الله ذَنْبٌ.
3. Muhammad ibn Yahya has narrated from through the chain of his narrators in a marfu’ manner who has said the following: “Abu ‘Abd Allah (a.s.), has said that the text is the same as the previous Hadith except that it says, ‘Read Chapter 112 of the Holy Quran sixty times in each Rak‘at.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī