Mayamatam 15.79

15.79

kartavyaṃ yadi tad vāstudharmakāmārthanāśakṛt
ekadravyakṛtaṃ śuddhaṃ miśraṃ dvidravyanirmitam

If it is done, that site causes the destruction of duty, pleasure, and wealth. / [A building] made of a single material is pure; one made of two materials is mixed;