The Hidden Words of Bahá'u'lláh
Page 24
 

"6: O SON OF EARTH! Know, verily, the heart wherein the least remnant..."
 
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O SON OF EARTH! Know, verily, the heart wherein the least remnant of envy yet lingers, shall never attain My everlasting dominion, nor inhale the sweet savors of holiness breathing from My kingdom of sanctity.