Al-Hadi
Allah is Al Haadi, The One who gives guidance to his believers. His Guidance is beneficial and protects them from whatever may be harmful. He is The One who sent prophets as the deliverers of his message to make sure mankind is guided on the right path.
From the root h-d-y which has the following classical Arabic connotations: to guide rightly to show with kindness the proper path to guide on the right path until reaching the goal to guide aright to lead the right way.
And so those who were given knowledge may know that it is the truth from your Lord and [therefore] believe in it, and their hearts humbly submit to it. And indeed is Allah the Guide of those who have believed to a straight path. (Quran 22:54)
And thus, have We made for every prophet an enemy from among the criminals? But sufficient is your Lord as a guide and a helper. (Quran 25:32)
[Who say], “Our Lord, let not our hearts deviate after You have guided us and grant us from Yourself mercy. Indeed, You are the Bestower. (Quran 3:8)
And those who strive for Us – We will surely guide them to Our ways. And indeed, Allah is with the doers of good. (Quran 29:69)