Astanga Hrudaya
सिराजाले सिरा यास्तु कठिना लेखनौषधैः । न सिध्यन्त्यर्मवत्तासां पिटिकानां च साधनम्॥२८ ॥
In Sirajala, the veins which are hard and do not respond to herbs of scraping action, the treatment is same as of Arma (surgical treatment). So also, for the Siraja Pitaka.
english translation
sirAjAle sirA yAstu kaThinA lekhanauSadhaiH । na sidhyantyarmavattAsAM piTikAnAM ca sAdhanam॥28 ॥
hk transliteration by Sanscript