BibTeX:
@incollection{Various,
  author = {Various},
  title = {I have stated that my brother [‘Abdu’l-Bahá]was deeply attached to},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/abdul-baha-childhood},
}

APA:
Various. I have stated that my brother [‘Abdu’l-Bahá]was deeply attached to. In *bahaistories.com archive*.

MLA:
Various. "I have stated that my brother [‘Abdu’l-Bahá]was deeply attached to." *bahaistories.com archive*, n.d..

Chicago:
Various. "I have stated that my brother [‘Abdu’l-Bahá]was deeply attached to." In *bahaistories.com archive*, n.d..