成唯識論述記 4.572

4.572

述曰：入第四禪以上入出息滅，其息滅時身猶在故，名非遍行。第四禪中餘法所持令身不壞，下地之息於身有力。身虛疎故說息為行，除此無有唯有此牒。

The Commentary states: Upon entering the fourth dhyāna and above, inhalation and exhalation cease; when that respiration ceases, the body still remains; therefore, it is called non-omnipresent. In the fourth dhyāna, other dharmas sustain the body so that it does not deteriorate; the breath of the lower bhūmis has efficacy with respect to the body. Because the body is porous, the breath is called its activity. Apart from this, there is none; there is only this citation.