Excerpts from Books and Wikipedia
"The second of the 'twin resplendent lights' who heralded the Bab and Baha'u'llah. Died at Karbila, Dec. 31, 1843. [Baha'i Glossary by Marzieh Gail, p. 48] "O my beloved companions! Beware, beware, lest after me the world's fleeting vanities beguile you. Beware lest you wax haughty and forgetful of God. It is incumbent upon you to renounce all comfort, all earthly possessions and kindred, in your quest of Him who is the Desire of your hearts and of mine. Scatter far and wide, detach yourselves from all earthly things, and humbly and prayerfully beseech your Lord to sustain and guide you. Never relax in your determination to seek and find Him who is concealed behind the veils of glory. Persevere till the time when He, who is your true Guide and Master, will graciously aid you and enable you to recognize Him." [The Dawn-Breakers, p. 40]