Upon their return from Karbila, [circa 1848] Tahirih and her few companions were falsely accused of having been involved in the murder of her husband, Mullá Taqí, who was a fiercest opponent of the Báb’s teachings that she was promoting.
Nabil records: “The circumstances of the murder fanned to fury the wrath of the lawful heirs of Mullá Taqí, who now determined to wreak their vengeance upon Táhirih. They succeeded in having her placed in the strictest confinement in the house of her father, and charged those women whom they had selected to watch over her, not to allow their captive to leave her room except for the purpose of performing her daily ablutions. They accused her of really being the instigator of the crime. ‘No one else but you,” they asserted, ‘is guilty of the murder of our father. You issued the order for his assassination.’”
Following devious schemes and false promises the kinsmen of murdered Mullá Taqí managed to murder those few remarkable companions of Tahirih, among them were “Mírzá Muhammad-‘Alí, one of the Letters of the Living and her brother-in-law, and Siyyid ‘Abdu’l-Hádí, who had been betrothed to her daughter, travelled with her all the way from Karbilá to Qazvín.” (Nabil, ‘The Dawn-Breakers’, translated and edited by Shoghi Effendi)
While “still in confinement, Táhirih, as soon as she was informed of the designs of her enemies, addressed the following message to Mullá Muhammad… the Imám-Jum’ih of Qazvín”: (ibid)