‘Abdullah bin Jud‘aan was the cousin of Hazrat ‘Aa’ishah (radhiyallahu ‘anha) i.e. her father’s brother’s son. Once, Hazrat ‘Aa’ishah (radhiyallahu ‘anha) asked Rasulullah (sallallahu ‘alaihi wasallam), “O Rasul of Allah (sallallahu ‘alaihi wasallam)! ‘Abdullah bin Jud‘aan was an extraordinarily hospitable manand would feed the people often. Will this benefit him in any way on the Day of Qiyaamah?” Rasulullah (sallallahu ‘alaihi wasallam) replied, “No! This is because he did not say:

رب اغفر لي خطيئتي يوم الدين

O my Sustainer! Pardon my sins on the Day of Reckoning!

In other words, he did not seek forgiveness for his sins at any time in his life (i.e. he did not bring Imaan).