Writing the Qur’an with impure ink, even one letter of it, has the ruling of making it impure; and if it is written in this way, one must wash it off with water or something else to the extent that the impure ink substance is removed. Ruling 133.* Based on obligatory precaution, selling the Qur’an to a disbeliever is not a valid transaction. Giving the Qur’an to a disbeliever is unlawful if it amounts to disrespect or insult to the Qur’an or places it at risk of being disrespected.
However, there is no problem if giving [or selling] the Qur’an to a disbeliever is for guiding him, for example, and it would not amount to disrespect or insult to the Qur’an.
Ruling 134.* If a page of the Qur’an or an object that is necessary to respect – such as paper on which is written the name of Allah the Exalted, Prophet Muḥammad (Ṣ), or one of the Infallibles (ʿA), or an epithet (laqab) or kunyah[1] of these great personalities – falls into a lavatory, it is obligatory to take it out and wash it even if it costs money to do so.
If it is not possible to take it out, the lavatory must not be used by those who know about the fallen paper until they are certain the page has decomposed. Telling others about this is not obligatory. Furthermore, if a turbah[2]of Imam al-Ḥusayn (ʿA) falls into a lavatory and it is not possible to take it out, the lavatory must not be used until one is certain the turbah has completely dissolved.