成唯識論述記 4.405

4.405

述曰：五識依別。若能執受，無識之時，身冷應起。若身識遍能執受者，或不行故；漸命終時亦有先捨五識身故。

The Commentary states: The five consciousnesses have distinct bases. If they could appropriate, then at times when consciousness is absent, cold should arise in the body. If the body-consciousness could universally appropriate, [that fails because] it sometimes does not operate; and when gradually dying, there are also cases where the five consciousnesses are abandoned first.