Abdul Baha was responsible for Haji Siyyid Muhammad Afnan's death

After returning from the said voyage and remaining a few years under the shadow of the Great Sun of Truth, Baha'u'llah, again by His command I journeyed to Bombay (East India) [in 1889]. This time my son Shua'u'llah and the late Haji Khavar accompanied me. The previous voyage was for the purpose which I have already explained, and this time also the object was to serve the cause of God. The existence of a printing press was essential, in order to publish some of the blessed revelations [of Baha'u'llah] and spread them abroad, that the ears of those who seek may hear the call of the Supreme Pen. It was difficult to attain this object in this land [i.e. Palestine] and I therefore humbly petitioned to Baha'u'llah to grant me permission to fulfill this important service during my visit to India.

The Supreme Will commanded [it], and after my arrival at Bombay I held a meeting with the late Haji Siyyid Muhammad Afnan, upon him be His Mercy and Glory. He showed a great deal of enthusiasm, and though it was financially difficult for him at that time, he arranged it eventually, and opened the Naseri Press. I petitioned to Baha'u'llah and explained the situation. Permission was granted with one understanding, that the said Afnan should control the press and I should have no interest in it whatsoever.

When the project was carried out and the printing press was in full action, the Book of Aqdas and the Book of Haykal were copied by the late Haji Mirza Husayn Shirazi, better known as Khartumi, and the late Mulla Ahmad Ali Nayrizi. I carefully compared them with the original manuscripts, then sent them to the printing press. When the proofs of both books came, I presented them to Baha'u'llah through the mail and again secured His permission for the final printing. Also an epistle which was composed by Ghusn-i-A'zam ('Abdu'l-Baha) and which I asked the late Mirza Muhammad of Isfahan, who was the caretaker at the pilgrim house in Acre, to inscribe. This was also printed. Later on, other holy books [by Baha'u'llah] were printed, namely the Book of Ishraqat, the book inscribed by Mishkin-Qalam, the Book of Aqdas in modern type, the book of supplications [i.e. Baha'i prayer book] inscribed by Haji Mirza Husayn Khartumi, and the small book of supplications in modern type.

All the above-mentioned books were printed by the said Naseri Press. The owner was Haji Siyyid Muhammad Afnan and the manager [was his cousin] Aqa Mirza Ibrahim Afnan. Doubtless Baha'u'llah considered this as one of the most important events [in his ministry], and the said Haji Siyyid Muhammad Afnan was bestowed with the great favor to be the pioneer in this service. Indeed he did everything in his power either in the way of service or in spending capital to arrange this printing press. He lost a considerable amount of money in this enterprise, as after the ascension of Baha'u'llah, they (Abdu'l-Baha and his supporters) did not let him receive any earthly benefit from it, and finally he was obliged to sell the printing press at a loss and return to Shiraz, Iran. His heart was broken, and in grief he became ill and passed unto the Eternal Realms.

-A Lost History of the Baha'i Faith