Q- heard a Hadith which states that whoever says ‘Ya Arhamar Rahimin’ three times in their du’a, Allah listens to them. Can you please cite the narration and the grading.
Imam Hakim (rahimahullah) has recorded this Hadith with two very weak chains. The narration should not be quoted. The complete narration is as follows: “Allah Ta’ala has appointed an Angel for those who say ‘Ya Arhamar Rahimin’. So whoever says it thrice, the Angel says, Certainly Arhamur Rahimin [i.e. Allah Ta’ala] is paying attention so ask”. (Mustadrak Hakim, vol. 1 pg. 544. Refer: Talkhisul Mustadrak of Hafiz Dhahabi and Lisanul Mizan, vol. 6 pg. 329 -number: 6030-. Also see Faydul Qadir, Hadith: 2359)
However using the words ‘Arhamur Rahimin’ in du’a is certainly desirable. Musa (‘alayhis salam) had also used these words when supplicating to Allah. Allah Ta’ala says in the Holy Quran: “He [Musa ‘alayhis salam] said, “O My Rabb! Forgive me and my brother and admit us into Your mercy. You are the Most Merciful of those who show mercy [Arhamur Rahimin]”.(Surah A’raf, verse: 151)
And Allah Ta’ala Knows best.