Narrated Anas bin Malik:
The Prophet of Allah ﷺ said to me: "My son! If you are able of live the morning and the evening without any deception ( غِشٌّ ) in your heart for anyone, then do so." He added "My son! That is from my practice. And whoever revives my practice loves me. And whoever loves me will be with me in Paradise."
Reference: Tirmidi
http://sunnah.com/tirmidhi/41/34