Buying and selling contracts are very essential in terms of commerce because they are related to the validity of buying and selling, Khiyar, Bai ’Al-Mu’atha, the attitude of Ant-Tharadin and as-saman and as-si’r. Because buying and selling things like this must be clear and detailed so that no one is disappointed between buyers and sellers, the most common problem is not understanding and understanding the essence of the sale and purchase contract itself even though this is very necessary and needed in terms of commerce .

Property is one of the most important instruments in this life, because wealth is as a support for the continuity of human life, in Islam it is always emphasized the importance of independence in owning property through work or business, because Allah really loves his servant who is always giving alms with his own property. Allah Almighty really likes hard workers or people who are persistent in seeking treasure for the sake of the afterlife, even Allah SWT emphasizes in Surah at-taubah father 10. And Say: "Work for you, Then Allah and His Messenger and the believers will see your work, and you will be returned to (Allah) who knows the unseen and the real, then He tells you what you have done.Even the Companions of the Messenger of All āh adalah were rich people who possessed wealth for the progress and development of Islam at the time, a very real example was the Friends of Abu Bakr, Abdurrah bin ʻAuf, Uthman ibn Affan and the Wife of the Messenger of All āh adalah was a great entrepreneur, Siti Khadijah. They are friends looking for wealth and have it as much as possible then after that they distribute their wealth through ZISWAF, it is obligatory and must for Muslims to seek have property for the benefit of the world and the hereafter and the interests of Muslims and provision in the hereafter Can be concluded that ownership of property in Islam it is very important because it is a means of sustaining life and as a place to find savings for ukhrawi life later, because indeed ownership of property in Islam is not only focused on worldly matters, but there are two elements that are always included, namely for worldly and spiritual interests It should be underlined in the ownership of the property that the principle must be instilled that this property has the absolute God Almighty, we are only temporarily entrusted, therefore it is not beautiful to not distribute the assets we have to people in need through ZISWAF instruments.

Aceh's forest is a biosphere reserve, a world heritage, and a natural habitat for animals, such as the Sumatran tiger, Ceumpala Kuneng, and Sumatran elephant. However, Aceh's forests are currently experiencing a deficit related to uncontrolled land conversion, among others due to forest conversion to oil palm land, gold mining, illegal logging, and illegal new stone mining. Although Aceh's forest area as of 2019 was 2,989,212 hectares, the damage figure reached 15,140 hectares. Thus, this study aims to create a model of Aceh’s forest waqf to protect it from the natural damage caused by humans. This qualitative research utilized the ANP (Analytic Network Process) analysis tool. The study results revealed that the most important factors for Aceh's forest waqf model were components of forest waqf, companies, and the government. Forest waqf solutions include infaq and shadaqah fund solutions, waqf institutions, and full-time nazhir (waqf manager). The company's solutions encompass institutional audits, citizen patrols, and reporting. Meanwhile, the government's solution can be in the form of a limitation solution, policy evaluation, and local government involvement. Besides, the strategy of forest waqf in protecting indigenous forests in Aceh Province can be in the form of synergies between forest waqf and BAZNAS (National Zakat Amil Agency), monitoring local officials, and granting authority to local governments.

Property is one of the most important instruments in this life, because wealth is as a support  for the continuity  of human life, in Islam it is always emphasized the importance of independence in owning property  through  work or business, because Allah really loves his servant who is always giving  alms with  his own property.  Allah Almighty really likes hard workers or people who are persistent in seeking treasure for the sake of the afterlife, even Allah SWT  emphasizes in  Surah at-taubah  father 10. And Say: "Work  for you, Then Allah and His Messenger and the believers  will see your work, and you will be returned to (Allah) who knows the unseen and the real, then He tells you what you have done. Even the  Companions of the Messenger  of  Allāh  adalah were rich people  who possessed  wealth  for  the progress and development of Islam  at the time, a  very real example was the Friends of Abu Bakr, Abdurrah bin ʻAuf, Uthman ibn Affan and the Wife of the Messenger of Allāh adalah was a great entrepreneur, Siti Khadijah. They are friends looking  for wealth and have it as much as possible then after that they distribute their wealth through ZISWAF, it is obligatory and must for Muslims  to seek / have property  for the benefit of the world and the hereafter and the interests of Muslims and provision  in  the hereafter Can be concluded that ownership of property in Islam  it is very important because it is a means of sustaining life and as a place to find savings  for ukhrawi life  later,  because indeed ownership of property in Islam  is  not only focused  on worldly matters, but there are  two elements  that are always included,  namely for  worldly  and spiritual interests. It  should be underlined in the ownership of the property  that the principle  must be instilled that this property has the absolute God Almighty, we are only temporarily entrusted, therefore it is not beautiful to not distribute the assets we have to people in need through ZISWAF instruments.

Currently, many campuses have implemented operational fund management through waqf, including the Al-Azhar Egypt campus, Unida Gontor, UII Yogyakarta, and Darunnajah waqf. However, on the other hand, there are still many aspects of management as well as data and management that have not been digitized and published in general. so that this becomes a problem of waqf accountability itself. The purpose of this study is to clearly know the pattern of cash waqf management at the Unida Gontor and MUI campuses and be able to implement this model on all campuses. The methodology of this research is descriptive qualitative with an ANP analysis tool. The results show there are 3 problems in this cash waqf model. Among other things, the HR factor with a rather agreement value of 2%, universities with a rather agreement value of 12% and the operational value of rather agreement at 1%, and the strategy, namely the synergy between BWI and universities, using local wisdom and being used as waqf as a lifestyle with the rather agreement value by 16%.