This concept is highlighted by the fact that, based on the ten-year treaty of Hudaibiya , ratified between Muhammad and his Quraish opponents in Mecca (628), ten years is theoretically the maximum amount of time Muslims can be at peace with infidels (as indicated earlier by the Encyclopaedia of Islam). Based on Muhammad’s example of breaking the treaty after two years, by citing a Quraish infraction, the sole function of the “peace-treaty” (hudna) is to buy weakened Muslims time to regroup for a renewed offensive. Muhammad is quoted in the Hadith saying: “If I take an oath and later find something else better, I do what is better and break my oath (see Sahih Bukhari V7B67N427).”