Matsya Purana 253.38

253.38

marmacaitatsamākhyātaṃ triśūlaṃ kopagañca yat.
stambhaṃ nyāseṣu varjyāni tulā vidhiṣu sarvadā .. 253.37

Now the Vamśas are being stated in due order, viz, from Vâyu to Roga, from Pitṛis to Agni, Mukhya to Bhriśa, Śeṣa to Vitatha, Sugriva to Aditi, Mṛiga to Parjanya, at certain other places from Mṛiga to Jaya is considered one family or Vamśa The smaller squares where the Devas are located are termed Pada Madhya and Sama, they are named also Madhya, Trisula and Konaga These are always to be avoided in the ceremonies Stambhanyâsa and Tulâdividbi (where gifts are made in gold equivalent to the weight of the performer of the ceremonies) The Vâstu is always to be fixed on the lines of Pitṛis and Vaisvânara Impurities (Uchhiṣta) and Upaghâtas, etc, are to be carefully avoided—34 38