Advance Payment for Buying Slaves and Animals

10. Humayd ibn Ziyad has narrated from al-Hassan ibn Muhammad ibn Sama‘ah from more than one person from Aban from Hadid ibn Hakim who has said the following: “This is concerning my question before abu ‘Abd Allah عليه السلام, about the case of a man who bought skins from the butcher to give him every day something clearly known. He (the Imam) said, ‘It is not unlawful.’”