Brihat Samhita
अपरेण पद्मकेतुर्मृणालगौरो भवेन्निशां एकाम् । सप्त करोति सुभिक्षं वर्षाण्यतिहर्षयुक्तानि ॥ ११-४९ ॥
Padma Ketu is a comet white like the stem of the lotus. If it appears only for a night, there will be joy and happiness in the land for 7 years.
english translation
apareNa padmaketurmRNAlagauro bhavennizAM ekAm । sapta karoti subhikSaM varSANyatiharSayuktAni ॥ 11-49 ॥
hk transliteration by Sanscript