Shiva Purana
अवगुंठ्याथ तत्सूत्रं शिष्यदेहं विचिंतयेत् ॥ मूलत्रयमयं पाशं भोगभोग्यत्वलक्षणम् ॥ २७ ॥
Then one should unwrap the thread and meditate on the body of the disciple. This rope of three roots is characterized by enjoyment and enjoyment.
english translation
avaguMThyAtha tatsUtraM ziSyadehaM viciMtayet ॥ mUlatrayamayaM pAzaM bhogabhogyatvalakSaNam ॥ 27 ॥
hk transliteration by Sanscript