CHAPTER: Supplicating For One In His Absence.
Abu Al-Darda said: I heard the Messenger of Allah صلی اللہ علیہ وسلم say: When a Muslim supplicates for his absent brother the angels say: Amin, and may you receive the like.
Narrated Abdullah ibn Amr ibn al-As: The Prophet صلی اللہ علیہ وسلم said: The supplication which gets the quickest answer is that made by one distant Muslim for another.
Narrated Abu Hurairah: The Prophet صلی اللہ علیہ وسلم said: Three supplications are answered, there being no doubt about them; that of a father, that of a traveller and that of one who has been wronged.