Matsyapurana 93.101

93.101

audumbarīṃ tathārdrāṃ ca ṛjvīṃ koṭaravarjitām
bāhumātrāṃ srucaṃ kṛtvā tataḥ stambhadvayopari
ghṛtadhārāṃ tayā samyag agnerupari pātayet //

The sacrificial ladle should be made of the fig tree. It should be of fresh, sappy wood, and straight, and free from rot. It should be one hand in length. This ladle should be placed on two supports, and clarified butter should be poured through it in a continuous stream into the fire.—101.