Yahya related to me from Malik from Abu'z Zinad from al-Araj from
Abu Hurayra that the Messenger of Allah, may Allah bless him and grant
him peace, mentioned the day of jumua and said, "There is a time in it
when Allah gives to a muslim slave standing in prayer whatever he asks
for," and the Messenger of Allah, may Allah bless him and grant him
peace, indicated with his hand how small it was.
Muwatta Malik Book 5, Hadith 16