Is it permissible to read the Quran without contemplating its meaning? And is it obligatory to contemplate every verse when reviewing what has been memorized in preparation for an exam, given the limited time available?

It is permissible to read the Quran without contemplation (tadabbur), but contemplation is better. The reward for reading with contemplation and proper recitation (tartīl) is greater in value, while the reward for frequent recitation is greater in number. It is not a condition to consult exegesis books for contemplation; rather, it is sufficient to engage the heart in understanding and taking admonition. It is possible to combine the study of exegesis with rapid recitation by allocating time for each.