A man asked the Prophet about the Hour (i.e. Day of Judgment) saying, "When will the Hour be?" The Prophet said, "What have you prepared for it?" The man said, "Nothing, except that I love Allah and His Apostle." The Prophet said, "You will be with those whom you love." We had never been so glad as we were on hearing that saying of the Prophet (i.e., "You will be with those whom you love.") Therefore, I love the Prophet, Abu Bakr and 'Umar, and I hope that I will be with them beCause of my love for them though my deeds are not similar to theirs.

(Narrated by Anas - al-Buhkhari 5.37) [src: alim.org]

A man said to the Prophet (peace be upon him): By Allah, O Messenger of Allah, I do love you. The Prophet (peace be upon him) said: Look, what you are saying? The man said: By Allah, I love you, and repeated this sentence thrice. The Prophet (peace be upon him) said: If you really love me, then be prepared for acute poverty, for extreme hardship rushes more rapidly towards a person who loves me, than a flood flows towards its goal. "

(Narrated Abdullah ibn Mughaffal - al-Tirmidhi) [src: alim.org]

The Holy Messenger of Allah the Almighty صلي الله عليه و سلم is quoted on the authority of Abu Huraira رضی الله تعلٰی عنه to have said:
“Allah the Almighty says, ‘I am towards My servant as he is towards Me.  I am with him when he remembers Me (dhikr).  If he remembers Me within himself, I remember him within Myself.  If he remembers Me in a gathering, I remember him in a gathering better than it.’”

(Sahih Al-Bhukhari V2, P1101) [src] p5, 4 Natijatu Al-Fikr Fi Al-Jahri Fi Al-Dhikr (Outcome of Contemplation over Vociferous Dhikr) an extract from Al-Hawi Lil Fatawa  by Jalal Al-Din Al-Suyuti رحمتاالله علیه, Dar-ul-Ehsan Publications

 "Allāh’s Messenger (صلى الله عليه وآله وسلم) said: when Allāh loves some person, He sends for Jibrīl and commands him: verily, I love such and such person; you should also love him, so Jibrīl loves him as well. Then Jibrīl proclaims in the heavens that Allāh loves such and such person; you should also love him. Then the residents of the heavens love him as well. Then his love is sent down to the earth (the world)."

Narrated by Abū Hurayrah (Radi Allah Ta'lah Anhu).  Muslim transmitted it in his as-Sahīh, b. of birr was-silah wal-ādāb (virtue, joining of the ties of relationship and good manners) ch.48 (4:2030#157/2637); Bakhārī narrated it at three places in his as-Sahīh: b. of bad’-ul-khalq (beginning of creation) ch.6 (3:1175#3037), b. of adab (good manners) ch.41 (5:2246#5693), and b. of tawhīd (Islamic monotheism) ch.33 (6:2721#7047); Ahmad bin Hambal in Musnad (2:413); Mālik bin Anas in al-Muwattā, b. of sha‘ar (hair) ch.5 (2:953#15); and Khatīb Tabrīzī in Mishkāt-ul-masābīh, b. of ādāb (good manners) ch.16 (3:74#5005). [src: Ch3 of Beseeching for Help, Tahir-ul-Qadri]