Musannaf Ibn Abi Shayba 5:766

Abu Bakr narrated to us, he said: Muhammad bin Bakr narrated to us, from Ibn Jurayj, he said: I said to 'Ata', "A man whose debt is more than his wealth has a harvest, so he harvests it. Should he pay its due on the day of its harvest?" He said, "What do you see?" (I said, "We see that) upon the man whose debt is more than his wealth, there is no charity (due) on his livestock nor on his capital, except that he should pay its due on the day of its harvest, the day he harvests it."