Is it permissible to supplicate by saying, "O Allah, I ask You by the right of 'There is no god but Allah'," by analogy with the permissibility of interceding through righteous deeds?

The question "By the right of 'There is no god but Allah'" is a form of supplication (tawassul) to Allah through His names and attributes, and through the righteous deeds of the servant, such as his faith and monotheism. This is permissible, although it is preferable to limit oneself to the supplications found in the Quran and the authentic Sunnah.