Śatapatha Brāhmaṇa ("of a hundred paths") 8.7.2.16

8.7.2.16

na bhinnāṃ na kṛṣṇāmupadadhyāt | ārcati vā eṣā yā bhidyata ārtamvetadrūpaṃ yatkṛṣṇaṃ nedārtamātmānamabhisaṃskaravā iti nābhinnām parāsyennedanārtamātmano bahirdhā karavāṇīti dhiṣṇyebhyaḥ pratisaṃkhyāya yā virājamatiricyerannottarāmudbhaveyustadvai khalu tā ārcanti tā bhittvotkara utkiredutkaro vā atiriktasya pratiṣṭhā tadyatrātiriktasya pratiṣṭhā tadevainā etatpratiṣṭhāpayati

Let him not lay down either a broken (brick) or a black one; for one that is broken causes failure, and sickly is that form which is black: 'Lest I should make up a sickly body,' he thinks. Let him not throw aside an unbroken (brick), lest he should put what is not sickly outside the body. Whatever (bricks), in counting from the dhishnya hearths, should exceed a Virâg, and not make up another, such (bricks) indeed cause failure: let him break them and throw them (ut-kir) on the heap of rubbish (utkara), for the heap of rubbish is the seat of what is redundant: thus he thereby settles them where there is. the seat of that which is redundant.