What are the books of sermons and advice, and books that collect Luqman's words?

The greatest book for admonition and advice is the Holy Quran, for it is the truth and the way out of tribulations, and whoever seeks guidance elsewhere, Allah will lead him astray. Also among the useful books for admonition and advice are the books of Sunnah, especially Riyadh As-Salihin and At-Targhib wa At-Tarhib, and the books of Ibn Al-Qayyim, Ibn Rajab, and Ibn Al-Jawzi, as well as Mukhtasar Minhaj Al-Qasidin and Al-Adhkar. As for the sayings of Luqman the Wise, they can be found in books of narrations and exegesis concerning the verse in Surat Luqman.