It wasnarrated from 'Abdullah bin 'Amr that the Messenger of Allah(ﷺ) said:
"No one properly understands who reads the Qur'an inlessthan three days." (PT)
English reference (PT): Vol. 1, Book 5, Hadith 1347 (PT)
Arabic reference (PT): Book 5, Hadith 1408 (PT)