Manusmriti

siva.sh/manusmriti/11/217

एतमेव विधिं कृत्स्नमाचरेद् यवमध्यमे । शुक्लपक्षादिनियतश्चरंश्चान्द्रायणं व्रतम् ॥ २१७ ॥

sanskrit

Let him follow throughout the same rule at the (Kandrayana, called) yavamadhyama (shaped like a barley-corn), (but) let him (in that case) begin the lunar penance, (with a) controlled (mind), on the first day of the bright half (of the month).

english translation

etameva vidhiM kRtsnamAcared yavamadhyame | zuklapakSAdiniyatazcaraMzcAndrAyaNaM vratam || 217 ||

hk transliteration by Sanscript