Imam Ali (AS) said, The best companion is one who makes you infatuated with the Hereafter, urges you to renounce worldly pleasures and assists you in obeying your Lord.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : خَيرُ مَنْ صَحِبْتَ مَنْ وَلَّهَكَ بالاُخرى وَ زَهَّدَكَ في الدُّنيا وَ أعانَكَ على طاعةِ المَولى
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Ghurar al-Ḥikam #191Imam Ali (AS) said, The one who assists [you] in obeying [Allah] is the best companion.