‏الزكاة : Hadeeth No:2149 Ibn Umar said that Allaah's Messenger (way sallAllaahu alayhi wa sallam) prescribed the payment of Zakat-ul-Fitr (on breaking the fast) of Ramadan for people, for every freeman, or slave, male and female among the Muslims-one sa' of dried dates, or one sa' of barley....

‏البيوع : Hadeeth No:3686 Nafi, reported this hadith with the same chain of transmitters stating that Allaah's Messengtr (sallAllaahu alayhi wa sallam) granted concession in case of 'ariyya transactions (for exchange of the same commodity) with measure....