What made you want to look up hoard? Please tell us where you read or heard it (including the quote, if possible).
Quran 10:57-58 Tafsir Jalalayn O MANKIND there has come to you an admonition from your Lord, a Book which contains [mention] of that which is [permissible] for you and that which is enjoined on you, and this [Book] is the Qur’ān; and a healing, a cure, for what is in the breasts, of corrupt beliefs and uncertainties, and a guidance, from error, and a mercy for those who believe, in it. Say: “In the bounty of God [that is] Islam, and in His mercy, the Qur’ān, in that, bounty and mercy, then, let them rejoice: it is better than all [the worldly wealth] that they hoard. altafsir.com