Ubayy bin Khalaf followed in the footsteps of his brother, Umayyah bin Khalaf, in his hostility towards Rasulullah (sallallahu ‘alaihi wasallam).

On one occasion, he picked up a decomposed bone and brought it before Rasulullah (sallallahu ‘alaihi wasallam). He then crushed it in his hands, scattered its fragments into the wind and mockingly asked, “Will Allah be able to resurrect this?” Rasulullah (sallallahu ‘alaihi wasallam) replied, “Yes! Allah Ta‘ala will resurrect this bone as well as your bones after they decompose, and He will then hurl you into the fire of Jahannum.”