“This is concerning my question before abu ‘Abd Allah (a.s.), about al-Rahn (security deposit). He (the Imam) said, ‘If it is more than what mortgagee has provided and it is destroyed, the difference must be paid to the mortgager; but if it is less and is destroyed, the one who has the extra must pay the difference to the mortgagor, and if both sides are equal then there is nothing to dispute about.’”