11. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ibn Abi ‘Umayr from Muhammad ibn Ishaq ibn ‘Ammar who has said the following:

“I once asked abu al-Hassan , about the case of a man who owes me a certain amount of dirham and says to me, ‘Extend the payback time and I will give you profit’. I then sell to him a gown worth a thousand dirham for ten thousand dirhams - or that he said, twenty thousand dirhams - and extend the payback time. He (the Imam) said, ‘It is not unlawful.’”