White-Crowned Shama - Copsychus stricklandii
Poring Hot Springs, forest nearby.
Nice blog on a similar spotting in the same location:
https://www.10000birds.com/white-crowned-shama-sabahan-endemic.htm

The white-crowned shama is a bird in the Old World flycatcher family. It is endemic to the Southeast Asian island of Borneo.
Similar species: Perching Birds
By Patomarazul
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Uploaded Jun 27, 2020. Captured Oct 4, 2015 15:11 in Poring Hot Springs & Nature Reserve, Kinabalu National Park Poring, 89300 Ranau, Sabah, Malaysia.