Narrated Ibn 'Abbas:
that the Messenger of Allah (ﷺ) said: "Indeed, the one who does not have the Qur'an inside him (his heart), is like the ruined house." (PT)
English reference (PT): Vol. 5, Book 42, Hadith 2913 (PT)
Arabic reference (PT): Book 45, Hadith 3161 (PT)