BibTeX:
@incollection{Various,
  author = {Various},
  title = {Husayn-‘Ali [later known as Bahá’u’lláh] was born November 12, 1817},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/bahaullah-childhood},
}

APA:
Various. Husayn-‘Ali [later known as Bahá’u’lláh] was born November 12, 1817. In *bahaistories.com archive*.

MLA:
Various. "Husayn-‘Ali [later known as Bahá’u’lláh] was born November 12, 1817." *bahaistories.com archive*, n.d..

Chicago:
Various. "Husayn-‘Ali [later known as Bahá’u’lláh] was born November 12, 1817." In *bahaistories.com archive*, n.d..