Matsya Purana 256.14

256.14

na bhasmāṅgāra kāṣṭhena nakhaśastreṇa carmabhiḥ.
na śrṛṅgāsthikapālaiśca kvacidvāstu vilekhayet .. 256.14

Vâstu should never be designed by nails, weapons, leather ashes, burnt wood, bones of horns skulls etc It is most inauspicious to do so with these things It brings in grief and calamities At the time of entering the house the artisan is to make these especially things all the auspicious ceremonies laying out of thread and fixing of pillars etc, is to be done—14 15