If he puts his status on Messenger/Facebook saying that he is out when he is at home

What the
Muslim is required to do is to be honest in all his statements, whether he
is talking about himself or someone else, verbally or in writing, because
Allah says (interpretation of the meaning):

“O you who
believe! Fear Allaah, and be with those who are true (in words and deeds)”

[al-Tawbah
9:119]

al-Bukhaari
(6094) and Muslim (2607) narrated that ‘Abd-Allaah ibn Mas’ood (may Allah be
pleased with him) said: The Messenger of Allah (blessings and peace of Allah
be upon him) said: “I enjoin you to be truthful, for truthfulness leads to
righteousness and righteousness leads to Paradise.
A man may continue to tell the truth and endeavour to be truthful until he
is recorded with Allaah as a speaker of truth. And beware of lying, for
lying leads to wickedness and wickedness leads to Hell. A man may continue
to tell lies and endeavour to tell lies, until he is recorded with Allaah as
a liar.” 

Whatever a
person writes about himself or his situation on Messenger or any other
website or means of communication, he must be truthful in it. It is not
permissible for him to write about himself that he is outside or in school,
for example, when in fact he is at home, because this is lying. If he
forgets to change his status (by typing or writing), he should change it
whenever he can. 

And Allah knows best.