Manusmriti
साहसेषु च सर्वेषु स्तेयसङ्ग्रहणेषु च । वाग्दण्डयोश्च पारुष्ये न परीक्षेत साक्षिणः ॥ ७२ ॥
In all cases of violence, of theft and adultery, of defamation and assault, he must not examine the (competence of) witnesses (too strictly).
english translation
sAhaseSu ca sarveSu steyasaGgrahaNeSu ca । vAgdaNDayozca pAruSye na parIkSeta sAkSiNaH ॥ 72 ॥
hk transliteration by Sanscript