The Prophet ﷺ said, "If Allah loves a person, He calls Gabriel saying: 'Allah loves so and so; O Gabriel, love him.' Gabriel would love him, and then Gabriel would make an announcement among the residents of the Heaven, 'Allah loves so-and-so, therefore, you should love him also.' So, all the residents of the Heavens would love him and then he is granted the pleasure of the people of the earth." (Using translation from Bukhārī 6040)   

أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا أَحَبَّ اللهُ عَبْدًا دَعَا جِبْرِيلَ فَقَالَ إِنِّي أَحْبَبْتُ فُلَانًا فَأَحِبُّوهُ فَيُحِبُّهُ جِبْرِيلُ ثُمَّ يُنَادِي جِبْرِيلُ أَهْلَ السَّمَاءِ إِنَّ اللهَ يُحِبُّ فُلَانًا فَيُحِبُّوهُ ثُمَّ يَضَعُ لَهُ الْقَبُولَ فِي الْأَرْضِ وَفِي الْبُغْضِ مِثْلُ ذَلِكَ