He (the Imam) said, ‘I do not like his separation before taking dinars.

He (the Imam) said, ‘I do not like his separation before taking dinars.’ I then said, ‘It is only in the same house and their places are close to each other and this becomes difficult for them.’ He (the Imam) said, ‘When he completes weighing and cashing he must instruct the slave that he wants to send, to become the seller and give the wariq (dirham) to him and receive dinars from him as he delivers to him the wariq (dirham).”’

صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (19/316))