Purananuru - Tamil
The worst sin is miserliness. Poets frequently shame kings for being stingy, threatening to transfer their patronage (and praise) elsewhere.
Unlike many ancient texts lost to fire and invasion, the was meticulously preserved on palm leaves ( Olaichuvadi ) in the Saraswathi Mahal Library in Thanjavur and various mutts in the Tamil country. In the 19th century, the pioneering work of U.V. Swaminatha Iyer (often called "Tamil Thatha" – Grandfather of Tamil) brought the Purananuru to print. purananuru tamil
For historians, the Purananuru is a primary source for understanding (the Sangam age). It mentions: The worst sin is miserliness