The ruling regarding the taraaweeh prayer on the night (preceding) the `Eed day
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Question: With respect to the taraaweeh prayer on the night (preceding) the `Eed day, is it to be completed or not?

Response: If the (sighting of the) moon has been confirmed on the 30th night of Ramadhaan, then the taraaweeh prayer is not (to be completed), and nor is the night prayer. And this is because the taraaweeh prayer and the night prayer are (specific) to Ramadhaan, so if the end of the month is confirmed then they are not to be completed, so the people depart from their masaajid to their homes.

Shaykh Ibn 'Uthaymeen
Fataawa Ramadhaan - Volume 2, Page 842, Fatwa No. 836;
al-Fataawa libni 'Uthaymeen - Kitaab ad-Da'wah, Volume 1, Pages 201-202