Tenancy rights

Hye friends,
I just wan to know about tenancy agreement as per Malaysian law. Im one of the tenant for in a house and we never sign any contract or agreement when we enter the house. Now currently we are planning to move out because of some problem..should we give minimum notification to owner and is it our deposit the owner should give us when we leave that house.
If we are wan to move out within two weeks, is it possible the owner will give deposit.
We are never sign the agreement or contract for this house until now.

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