(13) باب النَّهْىِ عَنْ بَيْعِ الثِّمَارِ، قَبْلَ بُدُوِّ صَلاَحِهَا بِغَيْرِ شَرْطِ الْقَطْعِ
In the hadith transmitted on the authority of Shu'ba it was stated that Ibn Umar (Allah be pleased with them) was asked what good condition implied. He said:
When (the danger of) blight is no more.
Reference: Sahih Muslim 1534 h
In-book reference: Book 21, Hadith 69
USC-MSA web (English) reference(deprecated numbering scheme): Book 10, Hadith 3671