alkafi-3148Vol. 2, p. 487
قَالَ رَسُولُ اللَّهِ ص إِذَا دَعَا أَحَدُكُمْ فَلْيَعُمَّ فَإِنَّهُ أَوْجَبُ لِلدُّعَاءِ.
“The Messenger of Allah has said, ‘Whenever anyone of you prays he should maintain inclusiveness (pray for everyone) in his prayer. This may become a reason for the acceptance of the prayer.