Núrayn-i-Nayyirayn (Arabic: نورين نيران, meaning "twin shining lights") are two brothers who were followers of Baháʼu'lláh, the founder of the Baháʼí Faith, a global religion of Persian origin.
For years, they had helped the Imám-Jum'ih manage his affairs, making several payments on his behalf, which became quite a substantial amount.
They approached Sultan-Mas'ud Mirza, the governor of Isfahan, and he quickly agreed to have them thrown in jail, on the grounds that they were Baháʼís.
The collaborators wrote a letter to the Shah in Tehran, informing him that they had "in their concern for the security of the sovereign", detained and imprisoned two Baháʼís, and requested his permission to have them put to death.
They used their power as religious leaders to encourage over 50 other divines, each with his crowd of rioters, to approach the house of the governor and demand the death of the brothers, chanting "Oh for our Religion!"
Rope were fastened to the corpses, and they were then dragged around the city and left at the gallows, where people continued to throw stones at them.
Baháʼu'lláh wrote several tablets lamenting over the loss of the two brothers, and denouncing the treachery that provoked their murder.
173) The third of ʻAbdu'l-Bahá's four surviving daughters, Rúhá Khánum, married Mírzá Jalál, another son of the King of Martyrs.