عَن عُمَرَ بنِ الخَطَّاب رَضِيَ اللهُ عَنهُ قَالَ قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيهِ وَسَلَّمَ : إِذَا دَخَلتَ عَلَى مَرِيضٍ فَمُرْهُ يَدْعَو لَكَ فَإِنَّ دُعَاءَهُ كَدُعَاءِ الْمَلَائِكَةِ . (ابن ماجه ص104)
Hadhrat Umar (Radhiallahu Anhu) reports that Rasulullah (Sallallahu Alaihi Wasallam) said: “When you go to visit a sick person, then ask him to make duaa for you, for indeed his duaa is similar to the duaa of the angels (due to him being cleansed of his sins).
Ihyaaud Deen An Effort to Revive Deen in Totality