BibTeX:
@incollection{BahChronicleseditors,
  author = {Bahá'í Chronicles editors},
  title = {Mashhadí Ḥusayn and Mashhadí Muḥammad-I-Ádhirbáyjání},
  booktitle = {Bahá'í Chronicles},
  url = {https://bahaichronicles.org/mashhadi-%e1%b8%a5usayn-and-mashhadi-mu%e1%b8%a5ammad-i-adhirbayjani/},
}

APA:
Bahá'í Chronicles editors. Mashhadí Ḥusayn and Mashhadí Muḥammad-I-Ádhirbáyjání. In *Bahá'í Chronicles*.

MLA:
Bahá'í Chronicles editors. "Mashhadí Ḥusayn and Mashhadí Muḥammad-I-Ádhirbáyjání." *Bahá'í Chronicles*, n.d..

Chicago:
Bahá'í Chronicles editors. "Mashhadí Ḥusayn and Mashhadí Muḥammad-I-Ádhirbáyjání." In *Bahá'í Chronicles*, n.d..