Ruling on Musaajalah with Qur’aanic verses (i.e., where a person who has memorized Qur’aan is asked to quote a verse starting with the letter with which another verse ended)

Praise be to Allah.

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.