As for the first part of the kalimah, by one believing in the oneness of Allah Ta‘ala one testifies that there is no deity worthy of worship besides Allah Ta‘ala. Similarly, one testifies to Allah Ta‘ala’s oneness in his being and in all his attributes. One accepts that he is the only creator and only being worthy of worship and he is alone in all his attributes (giving life and death, wealth and poverty, success and failure, etc). Everything, in entirety, lies in his hands alone.