“c” bandining dalili shundaki, Alloh (swt) xalifaga musulmonlarning har qanday manfaatlarini boshqarishni, ularda bor bo‘lgan manfaatga sarflash va ularga kerak bo‘lgan narsalarni yengillashtirishni farz qilgan. Manfaat butun ummat foydalanadigan narsalardir, masalan, suv chiqarish, ta’lim, yo‘llarni tuzatish va shunga o‘xshash boshqa narsalar. Foydalanish esa manfaatlarini qondirish uchun odamlar ishlatadigan yengilliklardan iborat, masalan, yo‘lovchilar uchun dam olish joyi, jamoat hojatxonalari, kasallarni davolash uchun shifoxonalar va ibodatchilar uchun masjidlar qurish. Biror narsadan foydalanish, deyiladi, uni ishlatishdir; shuning uchun musulmon masjidning joyidan o‘tirish uchun, suvidan esa taharat olish uchun foydalanadi. Demak, Shariat xalifani yo‘llar qurish, suv chiqarish, maktablar, masjidlar va shifoxonalar qurish hamda shunga o‘xshash boshqa ishlarga majbur qilgan, chunki bular ishlarni boshqarishning bir qismidir, manfaat esa foyda olish va zararni oldini olish uchun bo‘lgani uchun, bularni tayyorlamaslik zararga olib keladi. Foydalanish esa odamlar ehtiyojlarini qondirish uchun ishlatadigan narsalardir, ularning yo‘qligi zarurat bilan zararga olib keladi, zararni bartaraf etish esa xalifaning zimmasidagi farz bo‘lib, xuddi shunday musulmonlarning ham zimmasidadir. Ibn Abbosdan rivoyat qilinishicha, u aytdi: Alloh elchisi (sav) dedilar:
As for clause: “c”, its evidence is that Allah (swt) obligated the Khalifah to undertake the management of the interests of the Muslims by spending upon whatever interest they have and facilitating anything they need. The interest is what the whole Ummah uses, such as extracting the water, education, fixing the roads, and anything similar, and the utility is from the facilitation, which is what people utilise in order to fulfil their interests, such as a place of rest for travellers/passengers, public toilets, hospitals for the treatment of the ill and building mosques for the worshippers. It is said to utilise something is to use it, and so the Muslim utilises the space of the mosque for sitting and its water for ablution. So the Shari’ah obligated the Khalifah with issues such as building roads, extracting water, building schools, mosques and hospitals and anything else similar, since they are part of the management of the affairs, and because the interest is to attain a benefit and protect against a harm, and not making these available leads to harm. And utilisation is whatever the people utilise to fulfil their needs, and its lack of availability would necessarily bring about harm, and removing the harm is an obligation upon the Khalifah and in the same manner is obligatory upon the Muslims; it is reported from Ibn ‘Abbas who said: The Messenger of Allah (pbuh) said: