Recommendations for textbooks that include rigorous proofs of theorems in mathematical physics focus on several key titles. Reed and Simon's "Methods of Modern Mathematical Physics" (Volumes I and II) is highlighted for its thoroughness and mathematical rigor, with detailed notes on references for proofs not included in the text. Thirring's "A Course in Mathematical Physics" (Volume III) is also mentioned for its coverage of perturbation theory theorems, which are proven in Reed and Simon's work. Ballentine's text is noted for its rigorous treatment of quantum mechanics, although it lacks comprehensive proofs. Arnold's "Mathematical Aspects of Classical and Celestial Mechanics" is praised for its clarity but is criticized for missing many proofs, which are left for the reader to supply. Overall, these texts are recommended for those seeking a deeper understanding of mathematical physics through rigorous proofs.