BibTeX:
@incollection{Various,
  author = {Various},
  title = {Ásíyih Khánum – Bahá'u'lláh's wife and “companion in every one of His worlds”},
  booktitle = {Baha'i Stories for Children},
  url = {https://bahaistoriesforchildren.blogspot.com/2022/08/asiyih-khanum-bahaullah-wife-and.html},
}

APA:
Various. Ásíyih Khánum – Bahá'u'lláh's wife and “companion in every one of His worlds”. In *Baha'i Stories for Children*.

MLA:
Various. "Ásíyih Khánum – Bahá'u'lláh's wife and “companion in every one of His worlds”." *Baha'i Stories for Children*, n.d..

Chicago:
Various. "Ásíyih Khánum – Bahá'u'lláh's wife and “companion in every one of His worlds”." In *Baha'i Stories for Children*, n.d..