Al-Kāfi

Hadith 880
marriage
19ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ فَضَّالٍ عَنِ الرِّضَا (عَلَيْهِ السَّلاَم) قَالَ سَمِعْتُهُ يَقُولُ مَا وَقَفَ أَحَدٌ فِي تِلْكَ الْجِبَالِ إِلاَّ اسْتُجِيبَ لَهُ فَأَمَّا الْمُؤْمِنُونَ فَيُسْتَجَابُ لَهُمْ فِي آخِرَتِهِمْ وَأَمَّا الْكُفَّارُ فَيُسْتَجَابُ لَهُمْ فِي دُنْيَاهُمْ.
19. Ali ibn Ibrahim has narrated from his father from ibn Faddal who has said the following: “I once heard al-Rida (a.s.), say, ‘No one has stood in those hills without their prayers answered. The believing people’s prayers are answered in the matters of their next life, and the unbeliever’s prayers are answered in their worldly matters.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī