Waki said, "The baal is the dense crop that grows from rainwater."Ibn Aswad said that Yahya, meaning Ibn Adam, said, "I asked Abu Iyas al-Asadi about the baal, and he said, 'It is that which is watered by rainwater.'"Nadr bin Shumayl said, "The baal is rainwater."
قال وكيع البعل الكبوس الذي ينبت من ماء السماء قال ابن الأسود وقال يحيى يعني ابن آدم سألت أبا إياس الأسدي عن البعل فقال الذي يسقى بماء السماء وقال النضر بن شميل البعل ماء المطر
No references are available.
[Its chain is sahih] Abu Dawud narrated it alone and the statement of Yahya bin Adam in his book Kitab al-Kharaj*: 394.