What are the most prominent sources and references, both ancient and modern, that explain the Salaf's creed or refute the views of other madhhabs concerning the relationship of physical illnesses and disabilities to divine decree and predestination, and whether sins are related to this, and where can one search for this topic in books of creed?

The questioner may refer to the following sources on this topic:

1. "Shifa' al-Alil fi Masa'il al-Qada' wa al-Qadar wa al-Hikmah wa al-Ta'lil" (Healing the Ailing in Matters of Divine Decree, Destiny, Wisdom, and Rationalization) by Ibn al-Qayyim.

2. "Aqwam ma Qila fi al-Qada' wa al-Qadar wa al-Hikmah wa al-Ta'lil" (The Most Authoritative Sayings on Divine Decree, Destiny, Wisdom, and Rationalization) by Ibn Taymiyyah.

3. "Mawqif al-Bashar Tahta Sultan al-Qadar" (The Position of Humanity Under the Dominion of Divine Decree) by Mustafa Sabri.

4. "Al-Iman bi al-Qada' wa al-Qadar wa Atharuhu fi Suluk al-Insan" (Belief in Divine Decree and Destiny and its Effect on Human Behavior) by Abd al-Karim Zaydan.

5. "Al-Qada' wa al-Qadar Bayna al-Falsafah wa al-Din" (Divine Decree and Destiny Between Philosophy and Religion) by al-Khatib.

6. "Al-Iman Kama Yusawwiruhu al-Kitab wa al-Sunnah" (Faith as Depicted by the Quran and Sunnah) by Ali Abd al-Mun'im Abd al-Hamid.

7. "Al-Iman bi al-Yawm al-Akhir wa al-Qada' wa al-Qadar" (Belief in the Last Day, Divine Decree, and Destiny) by al-Bayanuni.