Matsyapurana 93.126

93.126

mekhalopari sarvatra aśvatthadalasaṃnibham
vedī ca koṭihome syād vitastīnāṃ catuṣṭayam //

Over the girdles everywhere, an altar of 4 vitasti in measurement (i.e., 2 cubits or 1 yard) and of the shape of a peepal leaf, should be made. This is in the case of the sacrifice of a crore of offerings.—126.