Mentioned in the Atthasālinī (pp. 307-8), Buddhaghosa's Commentary on the Dhammasangani.
The quotation given from it is: "ekam mahābhūtam upādāya pāsādo pathavidhātuyā tīhi mahābhūtehi susangahito āpodhātuyā ca tejodhātuyā ca vāyodhātuyā ca." The sutta has, so far, not been traced elsewhere.