VaikhŚS, 11, 7, 4.0 juhūvadāyāmau darśapūrṇamāsāgnihotrārthau sruvau dvayoś ca daṇḍāyatam ekaviṃśatyaṅgulaṃ tanmūlam agraṃ ca pūrvavad daṇḍordhvaṃ tryaṅgulaṃ samavṛttaṃ dvyaṅgulaṃ ghanaṃ nāsikavad dvipuṭaṃ bilam //