Musannaf Ibn Abi Shaybah 23086 — Two men who share in goods, which

It is narrated from Ibn Sirin that a garment was shared between two men; one of them bought half for 20 dirhams and the other bought half for 10 dirhams. He said: If they both sell it by musawamah (a bargained sale) or murabahah (a cost-plus sale), the profit is half and half between them.