Major work, written on the first day of Riḍván as He was departing Baghdad, praising the Bábís of the Nayriz upheaval of 1850 and in particular their leader, Siyyid Yaḥyáy-i-Dárábí (Vaḥíd), recounting their sufferings and condemning their persecutors; describes the sufferings of the biblical Job, comparing them to those of the recipient of the tablet, who played a key role in supporting the defenders at Nayríz; commends fortitude and patience in the face of suffering; foretells the coming of ‘the birds of darkness’; and proclaims the continuity of divine revelation.