hadith
4345
۞
Imam Ali (AS) said, If you gain confidence in your close friend then safeguard some of your affairs and conceal some of your secrets [from him], for it is possible that you may regret [revealing it all to him] sometime in the future.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : إنِ اسْتَنَمْتَ إلى وَدُودِكَ فَأحْرِزْ لَهُ مِنْ أمْرِكَ وَ اسْتَبْقِ لَهُ مِنْ سِرِّكَ ما لَعَلَّكَ أنْ تَنْدِمَ علَيْهِ وَقْتاً ما