يَدعو مِن دونِ اللَّهِ ما لا يَضُرُّهُ وَما لا يَنفَعُهُ ۚ ذٰلِكَ هُوَ الضَّلالُ البَعيدُ

He prays to, instead of God, what neither harms nor benefits him. That is straying far.