Sahih Muslim
Sahih Muslim 2704 b
It Is Recommend To Lower One's Voice When Saying Remembrance, Except In The Cases Where It Is Commanded To Raise The Voice Such As The Talbiyah Etc. It Is Recommend To Say A Great Deal, "There Is No Power And No Strength Except With Allah"
Arabic hadith text
حَدَّثَنَا ابْنُ نُمَيْرٍ، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَأَبُو سَعِيدٍ الأَشَجُّ جَمِيعًا عَنْ حَفْصِ بْنِ،
غِيَاثٍ عَنْ عَاصِمٍ، بِهَذَا الإِسْنَادِ نَحْوَهُ
Translation
This hadith has been narrated on the authority of 'Asim with the same chain of transmitters.