Al-Kāfi - Volume 2 > Praying for Brothers (in Belief) in Their Absence
Hadith #1

1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ أَبِي الْمَغْرَاءِ عَنِ الْفُضَيْلِ بْنِ يَسَارٍ عَنْ أَبِي جَعْفَرٍ (عَلَيهِ السَّلام) قَالَ أَوْشَكُ دَعْوَةٍ وَأَسْرَعُ إِجَابَةٍ دُعَاءُ الْمَرْءِ لأخِيهِ بِظَهْرِ الْغَيْبِ.

1. Ali ibn Ibrahim has narrated from his father from ibn abu ‘Umayr from abu al- Mighra’ from al-Fudayl ibn Yasar from abu Ja’far (a.s.) who has said the following: “The prayer closest to acceptance and the fastest to be heard is a man’s prayer for a brother (in belief) in his absence.”