Prophethood, Revelation and Rational Need

Reason can ask whether God exists and whether a claimant is trustworthy, but observation alone does not specify how many prayers are obligatory or what happens after death. Revelation communicates guidance beyond unaided observation; interpreting it still requires disciplined reasoning.

We can use reason to ask whether a person is honest and whether the evidence for a messenger is trustworthy. But observation alone cannot tell us the number of rak'ahs required in each prayer or every detail of life after death. Revelation gives guidance in these matters. The Prophet Muhammad ﷺ received the Qur'an and taught believers how to practise its instructions; his authentic Sunnah helps us understand that guidance. A sensible student checks three things when someone quotes a religious rule: Is the quoted text real? What does it mean in its original setting? Does the rule apply to this particular situation? For example, knowing that prayer is commanded does not by itself explain the full way to perform it; we learn from Prophetic teaching. At the same time, a hadith printed on a poster is not necessarily authentic. Trustworthy religious learning requires checking sources and asking qualified teachers when interpretation is difficult.