Cleanse thyself from the defilement of riches and in perfect peace advance into the realm of poverty — Bahá’u’lláh
O Son of Passion! Cleanse thyself from the defilement of riches and in perfect peace advance into the realm of poverty; that from the wellspring of detachment thou mayest quaff the wine of immortal life.

Bahá’u’lláh

The Hidden Words, Part Two (Persian), No. 55

Bahá’í Reference Library