Husband telling his wife "I am leaving you"

Q: My husband and I had an argument on WhatsApp. He messaged me and texted that I'm leaving u from today..I'm blocking u all and said I'm breaking over the relationships. At that same moment I left the car as I was traveling and I asked him u divorce me... u using these words. He said are u mad .. did I used divorce... 

He swears to Allah he didn't intended divorce by that... He just threatening me and he just mean I will leave you but didn't leave. His sister saying she ask mufti and mufti said no divorce occur. What could I do, should I believe them?