Is it obligatory for children to perform wudu' to touch the mushaf?

Q: A question from a female listener: J. M. A. says: I am a teacher in an elementary school where I teach the subject of the Qur'an to second-grade girls. These students are young in age and do not know how to perform wudu' properly, and perhaps they do not care about it. They touch the mushafs and follow me in it, and they are not in a state of wudu'. Does sin attach to me in this, even though I have explained to them how to perform wudu' and they know it, or not?

A: If they are seven years old or older, they should be taught wudu' until they know it, and then they may be allowed to touch the mushaf. As for if they are younger than that, their wudu' is not valid, and wudu' is not their concern. Instead, the required text should be written for them on boards or papers, and they should not touch the mushaf. That is sufficient, if Allah wills. They should strive in this matter, and it is upon you to guide, advise, and teach them. May Allah reward you with good.