Imam Ibn Rajab:
Hassan Al-Basri rahimahullah said:
“Increase in seeking forgiveness, because you don’t know when
the Mercy (of Allah) will descend.”
And Luqman said to his son:
“O my son accustom your tongue with seeking forgiveness. For
verily Allah has times He does not reject
the one asking.”
Lataaif Al-Ma’arif , 291
Translated by @MarkazBukhari