Anything a dog touches must be washed seven times, the final time in dust.
"Hadith" in Islam/Islamic religious use is often translated as "prophetic traditions", meaning the corpus of the reports of the teachings, deeds and sayings of the Islamic prophet Muhammad. The hadith literature was compiled from oral reports that were in circulation in society around the time of their compilation long after the death of Muhammad. Sahih al-Bukhari/Bukhari's collection is considered the most reliable by many traditional religious scholars who are Sunnis. The Shi'as believe in an entirely separate body of hadith.
The hadith also had a profound and controversial influence on moulding the commentaries (tafsir) on the Quran. The earliest commentary of the Quran by Muhammad ibn Jarir al-Tabari is mostly sourced from the hadith. The hadith was used in forming the basis of Sharia/'Shariah' Law. Much of early Islamic history available today is also based on the hadith and is challenged for lack of basis in primary source material and contradictions based on secondary material available.More Hadith on Wikipedia.
Fast which is good to Allah and that fasting which Daud (AS) observed.
The greatest Jihad is to say the truth in front of the king.