Hudan warahmatan lilmuhsineen (surah Luqman: 3)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(31:3) a guidance and mercy for the doers of good, *2

Hudanw wa rahmatal lilmuhsineen

*2) That is, "These verses give guidance to the Right Way and have been sent down as a mercy from God. But the people who can profit by this mercy and guidance are only those who adopt a righteous attitude, who wish to become good, who crave for their own well-being, whose quality is that they avoid the evil when they are warned of it, and follow the good when they are shown the ways to it. As for the wicked and mischievous people, they will neither profit by this guidance nor receive any share from this mercy. "