Manusmriti

siva.sh/manusmriti/8/151

कुसीदवृद्धिर्द्वैगुण्यं नात्येति सकृदाहृता । धान्ये सदे लवे वाह्ये नातिक्रामति पञ्चताम् ॥ १५१ ॥

sanskrit

In money transactions interest paid at one time (not by instalments) shall never exceed the double (of the principal); on grain, fruit, wool or hair, (and) beasts of burden it must not be more than five times (the original amount).

english translation

kusIdavRddhirdvaiguNyaM nAtyeti sakRdAhRtA | dhAnye sade lave vAhye nAtikrAmati paJcatAm || 151 ||

hk transliteration by Sanscript