Al-Kāfi
Hadith 16464ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ إِسْمَاعِيلَ بْنِ مِهْرَانَ عَنْ سَيْفِ بْنِ عَمِيرَةَ عَمَّنْ ذَكَرَهُ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ إِنَّ الله عَزَّ وَجَلَّ لا يَسْتَجِيبُ دُعَاءً بِظَهْرِ قَلْبٍ قَاسٍ.
4. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from Isma’Il ibn Mehran from Sayf ibn ‘Amirah from those whom he has mentioned (in his book) from Abu ‘Abdillah (a.s.) who has said the following: “Abu ‘Abd Allah (a.s.) has said, ‘Allah, the Most Majestic, the Most Holy, does not accept a prayer coming superficially from a hardhearted attitude.’”