This hadeeth comes under the following chapter: EXHORTATION TO SUPPLICATE AND MAKE MENTION (OF ALLAAH) AT THE END OF THE NIGHT AND ITS ACCEPTANCE BY THE LORD
Abu Sa'id and Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Allaah waits till when one-third of the first part of the night is over; He descends to the lowest heaven and says: It there any supplicator of forgiveness? Is there any penitant? Is there any petitioner (for mercy and favour)? Is there any solicitor? -till it is daybreak.