«وَكَتَبَ لَهُ بِهِ قِطًّا»
And each wrote him a note for that share.
Qiṭṭ can mean a written note, voucher or paper recording an entitlement. It echoes qisṭ in sound, but the meanings differ: a document versus a portion.
The passage explicitly establishes written commitments. It does not itemise which amounts had already been physically paid over at this point. This distinction prevents overstating the transaction.