Following Satan

Whoever takes Satan as an ally instead of Allah has suffered a tremendous loss.

4:38And (also) those who spend their wealth in order to be seen of men, and believe not in Allah nor the Last Day. Whoso taketh Satan for a comrade, a bad comrade hath he.

4:119And surely I will lead them astray, and surely I will arouse desires in them, and surely I will command them and they will cut the cattle' ears, and surely I will command them and they will change Allah's creation. Whoso chooseth Satan for a patron instead of Allah is verily a loser and his loss is manifest.