A Guide
وَتَرَى الشَّمْسَ إِذَا طَلَعَتْ تَزَاوَرُ عَنْ كَهْفِهِمْ ذَاتَ الْيَمِينِ وَإِذَا غَرَبَتْ تَقْرِضُهُمْ ذَاتَ الشِّمَالِ وَهُمْ فِي فَجْوَةٍ مِنْهُ ۚ ذَٰلِكَ مِنْ آيَاتِ اللَّهِ ۗ مَنْ يَهْدِ اللَّهُ فَهُوَ الْمُهْتَدِ ۖ وَمَنْ يُضْلِلْ فَلَنْ تَجِدَ لَهُ وَلِيًّا مُرْشِدًا {17}
And you see the sun when it emerges inclining away from their cave towards the right, and when it sets, it passes away from the left, while they are in an open space from it. That is from the Signs of Allah. One whom Allah Guides, so he is the rightly Guided, and one who He Lets to stray, so you will never find there being a guardian (or) a guide for him [18:17]
In Sahifa-e-Sajadia, Imam Sajjad-asws says:
اللَّهُمَّ أَنْتَ الْوَلِيُّ الْمُرْشِدُ وَ الْغَنِيُّ الْمُرْفِدُ وَ الْعَوْنُ الْمُؤَيِّدُ الرَّاحِمُ الْغَفُورُ
O Allah-azwj! You are the Guardian and the ‘الْمُرْشِدُ’ True Deliverer, the Unique Master and the Ultimate and the Most Merciful Sustainer.[1]
[1] Sahifa e Sajjadia, بحارالأنوار ج : 91 ص : 154