Hammad bin Salama حماد بن سلمة · The Book on Business

From Malik bin Aws bin Hadathan that he said: "I once said: 'Who can change some Dirham?' So Talhah bin 'Ubaidullah - and he was with 'Umar bin Al-Khattab - said: "Leave your gold with us, then return to us when our servant comes and we will give you your silver." 'Umar bin Al-Khattab said: "No! By Allah! Either give him his silver or return his gold to him. Indeed the Messenger of Allah (ﷺ) said: 'Silver for gold is…

That the Prophet (ﷺ) said: "Whoever purchased an animal that has not been milked, then he the choice when he milks it, if he wishes he may return it, returning a Sa' of dried dates along with it." There are narration on this topic from Anas, and a man from the Companions of the Prophet (ﷺ).

From Iyas bin 'Abd al-Muzani who said: "The Prophet (ﷺ) prohibited selling water." There are narrations on this topic from Jabir, Buhaisah from her father, Abu Hurairah, 'Aishah, Anas and 'Abdullah bin 'Amr. The Hadith is Iyas is a Hasan Sahih Hadith. This is acted upon according to most of the people of knowledge, they dislike selling water. This is the view of Ibn Al-Mubarak, Ash-Shafi'i, Ahmad, and Ishaq. Some of the people of knowledge permitted selling water, Al-Hasan al-Basri…

"A man from (the tribe of) Kilab asked the Messenger of Allah (ﷺ) about studding a stallion and he prohibited it. So he said: 'O Messenger of Allah! We stud the stallions so that we get honorarium (from the owners of the female horse)!' So he permitted it for honorarium." This Hadith is Hasan Gharib, we do not know of it except as a narration of Ibrahim bin Humaid, from Hisham bin 'Urwah.

Rafi' bin Khadij and Sahl bin Abi Hathmah narrated to him that the Messenger of Allah (ﷺ) prohibited Al-Muzabanah sales, (buying) fruits with dried dates, except for those who practice Al-'Araya - for he permitted it for them - and from buying grapes with raisins, and from every fruit by its estimation. This Hadith is Hasan Sahih Gharib from this route.