A Guide to Conclusive Proofs for the Principles of Belief (Arabic: الإرشاد إلى قواطع الأدلة في أصول الاعتقاد, romanized: Al-Irshad ila Qawati' al-Adilla fi Usul al-I'tiqad), commonly known simply as Al-Irshad ("The Guide"), is a major classic of Islamic theology.

Its author, Imam al-Haramayn al-Juwayni, was the leading theologian of his time.

He explains that we are often caught up in a temporally contingent existence, lost in continuity but that we should realize God's ability to interrupt this continuity at any time.

[3] Al-Juwayni focuses a similar amount of attention on legal methodology and is particularly concerned with the methods for discerning difficult debates.

He explains naskh "abrogation", for example, in great detail.