Valmiki Ramayana Ayodhya Kanda Sarga 88 Shloka 15
Original Shlokaउत्तरीयमिहाऽसक्तं सुव्यक्तं सीतया तदा। तथा ह्येते प्रकाशन्ते सक्ताः कौशेयतन्तवः।।2.88.15।।
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तदा then, सीतया by Sita, उत्तरीयम् upper garment, इह here, आसक्तम् had been, सुव्यक्तम् is is well evident, तथाहि as for instance, सक्ताः stuck, एते कौशेयतन्तवः these silken threads, प्रकाशन्ते are shining.
That the upper garment of Sita might have been caught here is well evident from the shining silken threads stuck.