Charak Samhita
आपस्ताः पुनरागुर्मा याभिः शस्यं पुरा हतम्। यथा प्रक्रियते सेतुः प्रतिकर्म तथाऽऽश्रये ॥९०॥
In order that flood waters may not damage crops as they did in the past, a dam is constructed as a preventive measure.
english translation
ApastAH punarAgurmA yAbhiH zasyaM purA hatam। yathA prakriyate setuH pratikarma tathA''zraye ॥90॥
hk transliteration by Sanscript