Natyashastra
सुमुखी च सुनन्दा च सङ्गतप्रथमा तथा । सुमुख्यादौ ग्रहं कृत्वा यथोक्तं सम्प्रयोजयेत् ॥ १४५॥
The Sumukhī and Sunandā, as well as the first Saṃgatā, should be performed in order. At the beginning of the Sumukhī, one should establish the Graha and then apply it as prescribed.
english translation
sumukhI ca sunandA ca saGgataprathamA tathA । sumukhyAdau grahaM kRtvA yathoktaM samprayojayet ॥ 145॥
hk transliteration by Sanscript