Shiva Purana
नर्मदायां नदीस्नानाद्विष्णुलोकमवाप्नुयात् । सुवर्णमुखरीस्नानं चापगे च गुरौ रवौ २६ ।
By bathing in the Narmada river, one attains Vishnu's abode. By bathing in Suvarnamukharī, and in the Ganga during the time of Guru (Jupiter) and Ravi (Sun).
english translation
narmadAyAM nadIsnAnAdviSNulokamavApnuyAt । suvarNamukharIsnAnaM cApage ca gurau ravau 26 ।
hk transliteration by Sanscript