Imam Ali (AS) said, Your speech is recorded, forever to remain in your book of deeds, so make it about that which brings you closer [to Allah] and beware of uttering that which will destroy you.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : كَلامُكَ مَحْفُوظٌ عَلَيْكَ مُخَلَّدٌ في صَحيفَتِكَ فَاجْعَلْهُ فيما يُزْلِفُكَ وَ إيّاكَ أنْ تُطْلِقَهُ فيما يُوبِقُكَ