BibTeX:
@incollection{BahChronicleseditors,
  author = {Bahá'í Chronicles editors},
  title = {The Conversion and Martyrdom of Vahíd},
  booktitle = {Bahá'í Chronicles},
  url = {https://bahaichronicles.org/siyyid-yahya-darabi-vahid/},
}

APA:
Bahá'í Chronicles editors. The Conversion and Martyrdom of Vahíd. In *Bahá'í Chronicles*.

MLA:
Bahá'í Chronicles editors. "The Conversion and Martyrdom of Vahíd." *Bahá'í Chronicles*, n.d..

Chicago:
Bahá'í Chronicles editors. "The Conversion and Martyrdom of Vahíd." In *Bahá'í Chronicles*, n.d..