Umar bin Yunus bin al-Qasim al-Yamami (may Allah have mercy on him) narrates through his chain that he said: "Al-muhaqalah, al-mukhadarah, al-mulamasah, al-munabadhah and al-muzabanah." Abu Ubayd (may Allah have mercy on him) said: Al-mukhadarah is that fruit is sold before it ripens while it is still green, and the sale of fresh fodder, vegetables and the like is also included in al-mukhadarah. For this reason, those who disliked it disliked selling fresh fodder for more than one cutting.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10583