Answered by Shaykh Ilyas Patel
1. Does it matter if I give a bit more than the exact money I have to give as zakat or does zakat has to be precise?
Answer:
In the Name of Allah, Most Merciful and Compassionate
1. Yes it is always good to pay an extra amount as a precaution.
2. Credits, money owed to you will be included in the earnings and Zakat has to be given on that money also.
And Allah knows best
– Ilyas
