The Kitáb-i-Aqdas
40.the teachers   ¶20
In a Tablet1, ‘Abdu’l-Bahá compares teachers who are involved with the spiritual education of the child to the “spiritual father” who “endoweth his child with everlasting life.” He explains that this is the reason that “teachers are listed among the heirs” in the “Law of God.”
Bahá’u’lláh specifies the conditions under which the teacher inherits and the share he or she receives (Q&A 33).
1 ‘Abdu’l-Bahá : From a Tablet - translated from the Persian. (The Compilation of Compilations, vol I, page 273, no. 614)