What is the ruling on the musajalah of the Qura’anic verses in order to remember the verses and to fill the time with something of value? It is not meant by it to belittle Allah’s verses.
There is nothing wrong with using means that help one to remember and properly memorize the Holy Qur’aan, such as competitions and testing those who have memorized it, and paying attention to verses that sound similar, rather these are things that are recommended (mustahabb), because they reinforce one’s memorization and help with it.
That includes what is called musaajalah, where a verse is recited to the hafiz then he is asked to recite a verse that starts with the letter with which the first verse ended.
And Allaah knows best.