In the Cause of Bahá'u'lláh, it is incumbent upon every soul to acquire a trade and an occupation. For example, I know how to weave or make a mat, and you know some other trade. This, in itself is an act of worship, provided that it is conducted on the basis of utmost honesty and faithfulness.
(‘Abdu’l-Baha, Star of the West, vol. 19, no. 2; The Compilation of Compilations vol. I, p. 4)