Ramayana
यमेवाधातुमिच्छन्ति तापसाः सततं वने । तस्यासौ दृश्यते धूमः सङ्कुलः कृष्णवर्त्मनः ॥ २-९९-१२
Here is the thick smoke emanating from the blacktrailed fire maintained perpetually by the ascetics living in the forest. ॥ 2-99-12॥
english translation
yamevAdhAtumicchanti tApasAH satataM vane । tasyAsau dRzyate dhUmaH saGkulaH kRSNavartmanaH ॥ 2-99-12
hk transliteration by Sanscript