O OPPRESSORS ON EARTH! Withdraw your hands from tyranny, for I have pledged Myself not to forgive any man’s injustice. This is My covenant which I have irrevocably decreed in the preserved tablet and sealed with My seal. Bahá’u’lláh, The Hidden Words of Bahá’u’lláh. Available from https://reference.bahai.org/en/t/b/HW/hw-138.html