I'd recommend not showing anyone other then your parents as sponsors. If you list someone else, other questions pop up. Why is this person helping you? Does he have enough to support you while supporting his family a the same time etc.
If you are showing him, I'd suggest you ask him to transfer the money to your bank account and then say where the money came from with his affidavit.
If you are showing him, I'd suggest you ask him to transfer the money to your bank account and then say where the money came from with his affidavit.