It has been reported in many narrations that Satan is waiting to mislead the human being in regard to how to attain money and spend it.

The Prophet of Islam (PBUH) said: Satan told me: The one who has wealth cannot escape me in three situations because I go to him/her in the morning and night until I knock him/her down in one of these times. I try to make him/her to earn wealth in non-Halal ways, or I do something that he/she spends his/her income in inappropriate places. Or at the end I do something that he/she falls in love with it. This is where he/she does not spend wealth in ways which must be spent [1].

[1] Kanzul Ommal, Vol. 3, Page 235.

Source: en.shafaqna.com