首楞嚴義疏注經 3.121

3.121

破木生也。此約所見煙相麁顯而破，不論其氣。若以煙表，實謂未通，故云其煙騰空未及遙遠也。煙猶在近，聞已遠通，故知其香不從木發。

Refuting its being born from the wood. This refutes based on the visible, coarse manifestation of smoke, without discussing its aroma. If indicated by smoke, it indeed has not penetrated, hence it says: 'When that smoke rises into space, it has not yet reached far.' The smoke is still near, while the smelling has already penetrated far; therefore one knows that its fragrance does not emanate from the wood.