Narrated Abu Hurairah radhi Allaahu anhu:
The Prophet sallAlaahu alayhi wa sallam said:
“If Allaah loves a person, He calls Jibreel saying, ‘Allaah loves so and-so; O Jibreel! Love him.’ Jibreel would love him and make an announcement amongst the inhabitants of the Heaven. ‘Allaah loves so-and-so, therefore you should love him also,’ and so all the inhabitants of the Heaven would love him, and then he is granted the pleasure of the people on the earth.”
Reported by Imaam Bukhari.