Manusmriti

siva.sh/manusmriti/3/149

न ब्राह्मणं परीक्षेत दैवे कर्मणि धर्मवित् । पित्र्ये कर्मणि तु प्राप्ते परीक्षेत प्रयत्नतः ॥ १४९ ॥

sanskrit

For a rite sacred to the gods, he who knows the law will not make (too close) inquiries regarding an (invited) Brahmana; but when one performs a ceremony in honour of the manes, one must carefully examine (the qualities and parentage of the guest).

english translation

na brAhmaNaM parIkSeta daive karmaNi dharmavit | pitrye karmaNi tu prApte parIkSeta prayatnataH || 149 ||

hk transliteration by Sanscript