The Baha'i cemetery, known as "Golestan-i-Javid" – the Eternal Garden – was confiscated. Ten years later, the City of Tehran demolished the cemetery in order to build the Khavaran Cultural Complex. In accordance with Shi'a jurisprudence, the conversion for the purpose of so-called "improvement" of a cemetery is only permissible after 30 years, but in this case only ten years had passed. The construction of the Khavaran Cultural Centre required deep excavation and the disinterment of more than 1,000 bodies. The design for the sunken yard and the vast basement of this complex was in reality a modern solution to the doctrinal problem of cleansing the soil of the "contamination" of the "unclean" remains of Bahá'ís. During the excavation and recycling of the soil, the remains of the "non-believer" Bahá'ís were apparently used in the foundation for the road and a new overpass. [Iran Press Watch 11 June 2018]

He made a pilgrimage in 1912 and a second one in 1919. Upon his departure he was given a gold coin by 'Abdu'l-Bahá which he interpreted as a sign that he would have great wealth. In addition to the services he rendered as a member of Bahá'í institutions and through the teaching trips he made throughout lran offering encouragement to the friends, he made generous gifts of funds which made possible the acquisition of lands and buildings for the Faith in Asia, Europe and Africa. These gifts were made without ostentation, often without even his family being informed and in many cases in response to Shoghi Effendi's wishes. Although it is impossible to compile a complete record, his munificence can be glimpsed by mentioning that in Africa alone he had up to 1958 purchased no less than forty-four Temple sites, Teaching Institutes, Bahá'í Centres and other sites.

Another notable contribution was the Missaghiyeh Hospital and Maternity Clinic in Tehran.

The follow cable was received from the Universal House of Justice:

15th AUGUST 1981. DEEPLY GRIEVED PASSING EMINENT DISTINGUISHED SERVANT BLESSED BEAUTY MEMBER BOARD COUNSELLORS AFRICA KNIGHT BAHA'ULLAH DEARLY LOVED MUḤAMMAD MUSṬAFÁ HIS LONG RECORD DEDICATED SERVICES IN ADMINISTRATIVE TEACHING FIELDS HIS SELF-SACRIFICING AUDACIOUS EFFORTS IN PROMOTION DEFENSE BELOVED FAITH UNFORGETTABLE CONVEY BEREAVED FAMILY FRIENDS LOVING SYMPATHY PRAYING HOLY SHRINES FURTHER UNFOLDMENT PROGRESS HIS NOBLE SOUL ABHA KINGDOM UNIVERSAL HOUSE OF JUSTICE. [BW18p768-771]