What is the ruling on using the name "Lā ʾilāaha ʾillallāh" (There is no god but Allah) as a fictional name in chat programs?

It is permissible to use the word of Monotheism (Tawhid) or Islamic slogans to enter forums, by analogy with engraving rings with the names of Allah or verses from the Quran. However, its user must avoid idle talk and forbidden amusement. If the forum includes amusement and jest, then it is not permissible to use these revered words therein.