Musannaf Ibn Abi Shaybah

Hazrat Musayyib bin Rafi’ says that Hazrat Abu Ayyub Ansari asked, “What are those four rak’ahs that you regularly perform before Zuhr?” The Holy Prophet (peace and blessings be upon him) replied, “At the time of the sun’s decline, the gates of Paradise are opened and they are not closed until the prayer is performed. I wish that my prayer be presented first.”