It is narrated from the Prophet of Islam (PBUH) who said: The start of rebellion and disobeying God is in six things:

1) Love of the world 2) Love of position and status 3) Love of food 4) Love of sleep 5) Love of comfort 6) Love of inappropriate friendship with women [1].

[1] Al-Kafi, Vol. 2, Page 289.

Source: en.shafaqna.com