Question Summary:
How can I repent after giving a false oath?

Question Detail:

How can I repent after giving a false oath? I lied to a friend and now after explaining that to him I want to try to ask Allah to forgive me.

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
 
The information given in the query is not clear. Kindly provide more details of the oath you took in order for us to issue a ruling.
 
And Allah Ta’āla Knows Best
Fahad Abdul Wahab
Student Darul Iftaa
New York, USA
Checked and Approved by,
Mufti Ebrahim Desai
 
www.Daruliftaa.net