On the authority of Abu Huraira (may Allah be pleased with him), who said: the Messenger of Allah (may the blessings and peace 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.