Valmiki Ramayana 7.90.9
पुलस्त्यश्च क्रतुश्चैव वषट्कारस्तथैव च ।ओङ्कारश्च महातेजास्तमाश्रममुपागमत्॥
pulastyaśca kratuścaiva vaṣaṭkārastathaiva ca |oṅkāraśca mahātejāstamāśramamupāgamat ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book