I have read on many websites that if one recites a specific name of Allah then he will receive certain benefits, eg, saying Ar Rahman a certain number of times will "remove the defect of forgetfulness" however different websites say different numbers. They also do not cite where they have found this information so i was wondering if there was any specific hadith which clearly stated the benefits of reciting specific names of Allah, eg Ar Rahman, or Al Gaffar etc.
Thank you.
