The Awliya Allah [Friends of GOD]

“Ala inna awliya ‘Allahi la khawfun aalayhim waa la hum yahzanoona”
“Lo! verily the friends of Allah! no fear comes upon them, nor shall they grieve.”
(Quran-10:62) Chapter Yunus

On the authority of Abu Hurairah [a companion of Prophet Muhammad] who said: the Messenger of Allah [prayers and Blessings of Allah be upon him]said:

Allah the Almighty has said:“Whosoever shows enmity to a friend of Mine, I shall be at war with him. My servant does not draw near to Me with anything more loved by Me than the religious duties I have imposed upon him, and My servant continues to draw near to Me with supererogatory works so that I shall love him. When I love him I am his hearing with which he hears, his seeing with which he sees, his hand with which he strikes, and his foot with which he walks. Were he to ask [something] of Me, I would surely give it to him and were he to ask Me for refuge, I would surely grant him it.” 

{Related by Bukhari}