Action 1
Whoever among you sees anything objectionable let
him change it. If he is not able to do so let him speak
against it, and if even this he is unable to do then
(condemn it) at heart which is the weakest form of
faith.
--Tradition by Muslim. Narrator: Abu Sayed al-Khidri.
Inaction 1
When people see anything abominable and do not
change it (even though they have the ability to do so)
it is near that God will overtake all with His
punishment.
-- Tradition by Ibn Majah and Tirmizi. Narrator: Abu Bakr Siddiq. (excerpt).