and he may have voluntary prayers that make up deficiencies in his obligatory prayers, as mentioned in the hadith (1)” (2).
He also said, may Allah have mercy on him, concerning the rulers whom the Prophet, peace and blessings be upon him, foretold would delay prayer beyond its appointed time: “If it is said—and this is correct—that they used to let its time elapse, then the Prophet, peace and blessings be upon him, commanded the Muslim community to pray on time and said: ‘Let your prayer with them be voluntary’ (3), and he forbade fighting them … Whoever delays prayer beyond its appointed time is sinful, but rulers are not to be fought merely on account of their sinfulness … These rulers are sinful, yet he commanded that prayer be performed behind them as a voluntary prayer” (4).
5 – These also include deliberately throwing a copy of the Quran into a latrine, urinating on it, or writing it with impure substances. Such conduct displays the utmost contempt for the glorious Quran and cannot come from someone who acknowledges it to be the speech of Allah, the Almighty and Majestic.