Volume 2, Book 13, Number 51:
Narrated Abu Huraira:
The Prophet said, “When it is a Friday, the angels stand at the gate of the mosque and keep on
writing the names of the persons coming to the mosque in succession according to their arrivals. The
example of the one who enters the mosque in the earliest hour is that of one offering a camel (in
sacrifice). The one coming next is like one offering a cow and then a ram and then a chicken and
then an egg respectively. When the Imam comes out (for Jumua prayer) they (i.e. angels) fold their
papers and listen to the Khutba.”