Śailādi said: The wood for generating fire by attrition shall be from Śamī or Pippala tree. It shall be sixteen Aṅgulas long. It shall be churned and fire shall be produced as prescribed repeating the Vahnibīja mantra and performing the Śaktinyāsa rite by the Hṛdaya mantra. The splendid sacrificial twigs shall be a Prādeśa in length. They shall put in the fire silently. The rite of Samūhana shall be performed as prescribed, by sprinkling water in the eight quarters beginning with the east in order.