Al-Kāfi - The Book of al-Zakat

Al-Kāfi - The Book of al-Zakat َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنِ الْحَسَنِ بْنِ عَلِيٍّ عَنْ يُونُسَ بْنِ يَعْقُوبَ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) زَكَاتِي تَحِلُّ عَلَيَّ فِي شَهْرٍ أَ يَصْلُحُ لِي أَنْ أَحْبِسَ ٠َخَافَةَ أَنْ يَجِيئَنِي ٠َنْ يَسْأَلُنِي فَقَالَ إِذَا حَالَ الْحَوْلُ فَأَخْرِجْهَا ٠َالِكَ لاَ تَخْلُطْهَا بِشَيْ‏ءٍ ثُ٠َّ أَعْطِهَا كَيْفَ شِئْتَ قَالَ قُلْتُ فَإِنْ أَنَا كَتَبْتُهَا وَأَثْبَتُّهَا يَسْتَقِي٠ُ لِي قَالَ لاَ يَضُرُّكَ.

He (the Imam) said, ‘Once the year is complete, you must pay Zakat of your asset and you must not mix it with anything, and then give whatever you want.’ I then asked, ’Can I write it down and keep a record to make it straight? He (the Imam) said, ‘That is not harmful.’” وثق - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/42))