Hadith Qudsi 51
51) Narrated Abu Huraira that the Prophet stated: Allah observed: I am with My slave when he remembers me and moves his lips (with remembrance).
(This Haditn is sound and reported in Musnad Ahmad).
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Repetition of Allah's chants and His virtues for example:Subhan Allah, Al-HamduIillah; andAllahu Akbar,