Qabadh means taking possession in the contracts of exchange ('uqud mu'āwadhāt). Generally qabadh is practiced based on urf i.e. the common practices of the local community in recognizing the way the possession of an asset has taken place. Qabadh varies from one type of asset to another.
Qardh Hasan قرض الحسن
Refers to benevolent loan, i.e. a loan contract between two parties with no extra charge over and above the loan. Any extra payment imposed by the lender or promised by the borrower is considered riba, thus prohibited. However the borrower is permitted to pay extra on payment at his absolute discretion as a token of appreciation to the lender.
The holy scriptures of Islam i.e. the words of Allah revealed to the Prophet Muhammad SAW in Arabic conveyed by the angel Jibrail AS.