Manusmriti
सर्वतः प्रतिगृह्णीयाद् ब्राह्मणस्त्वनयं गतः । पवित्रं दुष्यतीत्येतद् धर्मतो नोपपद्यते ॥ १०२ ॥
A Brahmana who has fallen into distress may accept (gifts) from anybody; for according to the law it is not possible (to assert) that anything pure can be sullied.
english translation
sarvataH pratigRhNIyAd brAhmaNastvanayaM gataH । pavitraM duSyatItyetad dharmato nopapadyate ॥ 102 ॥
hk transliteration by Sanscript