Hadith.19 - Imam Jafar ibn Muhammad Al-Sadiq عليه السلام said: "The fire consumes what is within it."
If a mouse falls into a container of solidified fat, oil, or honey, remove the mouse along with some of the surrounding substance, and the rest can be used and eaten. The same applies if a mouse falls into flour or similar substances. However, if a mouse falls into liquid oil, it is permissible to use that oil as a fuel for lighting. If a mouse falls into a container of oil but is removed before it dies, it is permissible to use that oil for anointing or to sell it to a Muslim.