How to End the Prayers
Question :

How should I end prayers?

Answer :

The prayer is ended by reciting "Assalamu Alaykum" during Tasleem that takes place after the prostration and Tashahhud.

Saying Takbeer After Tasleem
Question :

After ending the prayer, many people say Takbeer thrice while raising their hands thrice. May I say the Takbeers while raising my hands once?

Answer :

It is recommended to say the Takbeer three times while raising the hands, after finishing the prayers, and not doing so does not invalidate the prayers.