The Hadith:
Abu-Horaira said that the Prophet peace be upon him said: (To purify one's vessel licked by a dog, he should wash it seven times, the first time is with dust) and Abu-Horaira said that the Prophet also said: (If a dog licked in one's vessel, he should clear it then washes it seven times) [Narrated by Muslim].
The explanation of Hadith:
The two Hadith refer to the importance of clearing and purging the vessel that is licked by a dog by washing it seven times of which the first time is by dust. We can conclude from the Hadith that dust contains an antiseptic substance, the dog's saliva contains pathogens and that the vessel couldn't be cleaned except by washing it with dust and water.
Scientific fact:
Scientists have revealed a strange fact which is the presence of an antiseptic substance in dust. When the scientists studied the composition of dust, they have found that it contains substances that if mixed with bacteria and germs, they overcome them immediately and that the dog's saliva contains pathogens for humans that couldn't be cleaned except by dust…….
So Glory to God!
The point of inimitability:
It is shown from the Hadith that the Prophet peace be upon him has referred to a scientific fact that wasn't discovered except in the 20th century and this indicates that He peace be upon him doesn't say anything from himself but He always says what God be he exalted taught him as He peace be upon him lived in the seventh century when no one was aware of this medical fact.
It was scientifically proven that the dog's saliva contains a number of bacteria and viruses in its saliva and it is impossible to purify the vessel from the it except by washing it several times by water and once by dust and Prophet Mohammad peace be upon him said the truth when he referred to this scientific fact in his words: (To purify one's vessel licked by a dog, he should wash it seven times, the first time is with dust).
--------------------
By: Abduldaem Al-Kaheel