Hazrat ‘Abdullah bin Mas‘ood (radhiyallahu ‘anhu) narrates:

On one occasion, Rasulullah (sallallahu ‘alaihi wasallam) was performing salaah in the Haram while Abu Jahl and his friends were also present. Abu Jahl addressed his friends and asked, “Is there no one among you who will go and fetch the intestines of such-and-such camel and place it on Muhammed’s back as he goes into sajdah?”

The most wretched of them all, at that time, was ‘Uqbah bin Abi Mu‘ait. He rose, fetched the intestines and dumped it on the back of Rasulullah (sallallahu ‘alaihi wasallam) while he was in sajdah.