Sunnan Abu Dawud Collection: ::Book Number 14:: Hadith # 2514
Narrated Abdullah ibn Abbas: The Prophet (peace_be_upon_him) said: When your brethren were smitten at the battle of Uhud, Allah put their spirits in the crops of green birds which go down to the rivers of Paradise, eat its fruit and nestle in lamps of gold in the shade of the Throne. Then when they experienced the sweetness of their food, drink and rest, they asked: Who will tell our brethren about us that we are alive in Paradise provided with provision, in order that they might not be disinterested in jihad and recoil in war? Allah Most High said: I shall tell them about you; so Allah sent down; "And do not consider those who have been killed in Allah's path." till the end of the verse.