Yahya related to me from Malik from Sumayy, the mawla of Abu Bakr
ibn Abd ar-Rahman, from Abu Salih as-Sammani from Abu Hurayra that the
Messenger of Allah, may Allah bless him and grant him peace, said, "If
someone does ghusl for major ritual impurity on the day of jumua and
then goes in the first part of the time, it is as if he had offered up
a camel. If he goes in the second part of the time, it is as if he had
offered up a cow. If he goes in the third part of the time, it is as
if he had offered up a horned ram. If he goes in the fourth part of
the time, it is as if he had offered up a hen. If he goes in the fifth
part of the time, it is as if he had offered up an egg. And when the
imam comes out, the angels settle down listening to the dhikr
(remembrance of Allah)."
Muwatta Malik Book 5, Hadith 1