Is there a Hadith reported from Sayyiduna Mu’adh (radiyallahu ‘anhu) which states that there is a guard angel in the skies who does not let the actions of the people who backbite pass him [i.e their actions will never make it onto the higher heaven their actions will never be accepted]?
You are probably referring to the lengthy Hadith regarding the creation of the seven heavens and what transpires through each sky when a person does a good deed.
‘Allamah Mundhiri (rahimahullah) says, ‘The signs of fabrication are evident in all off the chains and words of this Hadith.’ The Hadith is not suitable to quote.
(Targhib, vol. 1 pg. 73-76. Also see: ‘Ujalatul Imla, pg. 35-38)
Also see here
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar