It was narrated from Aws bin Aws that :

The Prophet may Allah bless him and grant him peace said: "One of the best of your days is Friday. On this day, Adam was created and on this day he died, on this day the Trumpet will be blown, and on this day all creatures will swoon. So send a great deal of salah upon me on this day, for your salah will be presented to me." They said: "O Messenger of Allah may Allah bless him and grant him peace, how will our salah be presented to you when you have decomposed (after death)?" He said: "Allah, the Mighty and Sublime, has forbidden the earth to consume the bodies of the prophets, peace be upon them."

Narrated by Abu Dawud and Nasai

It is narrated on the authority of Abdullah ibn Auf:

The Prophet (peace and blessings of Allaah be upon him) said: 'Increase salawat to me on Friday.  Indeed it will be delivered to me and I will hear.’

Narrated by Shafi'i and Ibn Majah.