It is narrated from Ka'b bin 'Ujrah that he said: There are some words whose reciter is never unsuccessful. They are: «سبحان الله» , «الحمدلله» , «لا اله الا الله» ‏‏‏‏, «الله اكبر» one hundred times. This hadith has been narrated as marfu' by Ibn Abi Anisah and 'Amr bin Qais.