Al-Kāfi
Hadith 16287ـ الْحُسَيْنُ بْنُ مُحَمَّدٍ عَنْ مُعَلَّى بْنِ مُحَمَّدٍ عَنِ الْوَشَّاءِ عَنْ عَبْدِ الله بْنِ سِنَانٍ قَالَ سَمِعْتُ أَبَا عَبْدِ الله (عَلَيهِ السَّلام) يَقُولُ الدُّعَاءُ يَرُدُّ الْقَضَاءَ بَعْدَ مَا أُبْرِمَ إِبْرَاماً فَأَكْثِرْ مِنَ الدُّعَاءِ فَإِنَّهُ مِفْتَاحُ كُلِّ رَحْمَةٍ وَنَجَاحُ كُلِّ حَاجَةٍ وَلا يُنَالُ مَا عِنْدَ الله عَزَّ وَجَلَّ إِلا بِالدُّعَاءِ وَإِنَّهُ لَيْسَ بَابٌ يُكْثَرُ قَرْعُهُ إِلا يُوشِكُ أَنْ يُفْتَحَ لِصَاحِبِهِ.
7. Al-Husayn ibn Muhammad has narrated from Mu’alla ibn Muhammad from al- Washsha’ from ‘Abd Allah ibn Sinan who has said the following: “I heard Abu ‘Abdillah (a.s.) saying, ‘Prayer and pleading before Allah for help, repeals what is already determined, even after it is firmly established. Thus, increase your prayers; it is the key to all favors, success and need. What is with Allah, the Most Majestic, the Most Holy, cannot be achieved by any means other than prayer and any door that is knocked very often will sooner or later open up to the one knocking.’”