What are the rulings on returning a trust and the punishment for neglecting it?

Trusts must be safeguarded and returned upon request. Guarantee is obligatory in cases of denial, transgression, or negligence. However, guarantee is waived if the trust perishes without transgression or negligence. Neglecting a trust is a betrayal of Allah, His Messenger, and the trusts themselves. It is a characteristic of hypocrites and carries severe consequences in this world and the hereafter. Furthermore, the concept of trust encompasses prayer, ablution, weighing, and measuring.