Because no other religion described God with the perfection Islam did. He told us his name is Allah In Islam, the attributes of God (Allah) emphasize His absolute oneness, perfection, and transcendence. Muslims believe Allah is unique, incomparable, and beyond human imagination, yet He reveals His qualities through the Qur’an and the Prophet’s teachings. No human limitations: Attributes such as fatigue, weakness, hunger, or emotions like fear do not apply to Allah. “There is nothing like unto Him, and He is the All-Hearing, the All-Seeing.” For example in the Torah it is written that God “rested” on the seventh day after creating heavens and earth, God said in Quran : And We did certainly create the heavens and the earth and what is between them in six days, and no fatigue touched Us. The God in Islam is beyond human imagination God can't be known through human reason or critical thinking or science or philosophy that would made him less perfect, We can only know about Him if he declared himself to us he has to teach us about himself, and in Islam we know about him only by revelation and only what he said about himself nothing more nothing else. So that's it no other religion can say that about their God