Charak Samhita
येषां त्वेष क्रमस्तानि द्रव्याण्यूर्ध्वमतः शृणु। रक्तशाल्यादयः शस्ताः पुराणाः षष्टिकैः सह ॥१७८॥
the ingredients used for therapies in accordance to the above stated line of treatment has been described further. For this purpose, rakta shali, shashtika type of purana (preserved for over an year) rice are the best
english translation
yeSAM tveSa kramastAni dravyANyUrdhvamataH zRNu। raktazAlyAdayaH zastAH purANAH SaSTikaiH saha ॥178॥
hk transliteration by Sanscript