"Abu Hrayrah narrates, Messenger of Allah, (ﷺ) said: ""When Allah loves a person, He calls Jibril (Gabriel) and says: 'I love so-and-so; so love him.' And then Jibril loves him. Then he (Jibril) announces in the heavens saying: Allah loves so-and-so; so love him; then the inhabitants of the heavens (the angels) also love him; and then people on earth love him. And when Allah hates a person, He calls Jibril and says: 'I hate so- and-so, so hate him.' Then Jibril also hates him. He (Jibril) then announces amongst the inhabitants of heavens: 'Verily, Allah hates so- and-so, so you also hate him.' Thus they also start to hate him. Then he becomes the object of hatred on the earth also"".
[Muslim]."