Hadith.3846 - Imam Ali ibn Abi Talib (as) said:
"Whatever the partner spends during his travel is taken from the joint capital. However, when he returns to his town, whatever he spends is from his own share."
Al-Kāfi #888“About the case of Mudarabah (profit sharing) abu al-Hassan (a.s.), has said, ‘Whatever the trading party spends during his journey is from...