The Noble Scholar Shaykh Ibn Bāz رحمه الله said:
"The mercy (of Allāh) is not attained by hope."
The Noble Scholar Shaykh Sālih Al-Fawzān حفظه الله commented:
It's that you say: I'm going to enter into paradise. I'm going to find the mercy with Allāh... You depend on hope alone. You depend upon mercy alone. You don't fear the punishment (of Allāh), nor do you fear the anger (of Allāh). This is not permissible.