स्तम्भानां स्थापनं कार्यं रोहिण्या श्रवणेन वा । आचार्येण सुयुक्तेन त्रिरात्रोपोषितेन च ॥ ४५॥
The installation of the pillars (stambhānāṃ sthāpana) should be carried out during the auspicious nakṣatras of Rohiṇī or Śravaṇa, by a well-trained teacher (ācārya) who has observed a three-night fast (trirātrāupōṣita).
english translation