Ism-e-Azam_2

Buraida (Radiyallahu anhu) said that once when he entered the Masjid with Rasulullah (sallAllahu alayhi wasallam) at the time of Esha, a man was reciting the Quraan with a loud voice, so he asked Rasulullah (SallAllahu alayhi wasallam) whether he thought the man was hypocritical, but he replied’ “No, he is a believer who always turns to Allah.” He said that Abu Musa al-Ash‘ari was [also]*  reciting in a loud voice, Rasulullah (SallAllahu alayhi wasallam) began to listen to his recital. Afterwards Abu Musa Asha'ri (Radiyallahu anhu) sat down and engaged in dua saying,
اللَّهُمَّ إِنِّي أُشْهِدُكَ أَنَّكَ أَنْتَ اللَّهُ لَا إِلَهَ إِلَّا أَنْتَ أَحَدًا صَمَدًا لَمْ يَلِدْ وَلَمْ يُولَدْ وَلَمْ يَكُنْ لَهُ كُفُوًا أَحَد 

Rasulullah (SallAllahu alayhi wasallam) then said, “He has asked Allah using  His name when asked by which He gives, and when supplicated by which He answers." (Ism Azam)

(Mishkaat)