أَمَّا بَعْدُ، فَإِنَّ فِيمَا تَبَيَّنْتُ مِنْ إِدْبَارِ الدُّنْيَا عَنِّي، وَجُمُوحِ الدَّهْرِعَلَيَّ، وَإِقْبَالِ الْأَخِرَةِ إِلَيَّ، مَا يَزَعُنِي عَنْ ذِكْرِ مَنْ سِوَايَ، وَالِاهْتِمَامِ بِمَا وَرَائِي غَيْرَ أَنِّي حَيْثُ تَفَرَّدَ بِي دُونَ هُمُومِ النَّاسِ هَمُّ نَفْسِي، فَصَدَفَنِي رَأْيِي، وَصَرَفَنِي عَنْ هَوَايَ، وَصَرَّحَ لِي مَحْضُ أَمْرِي فَأَفْضَى بِي إِلَى جِدٍّ لَا يَكُونُ فِيهِ لَعِبٌ، وَصِدْقٍ لَا يَشُوبُهُ كَذِبٌ. وَوَجَدْتُكَ بَعْضِي، بَلْ وَجَدْتُكَ كُلِّي، حَتَّى كَأَنَّ شَيْئاً لَوْ أَصَابَكَ أَصَابَنِي، وَكَأَنَّ الْمَوْتَ لَوْ أَتَاكَ أَتَانِي، فَعَنَانِي مِنْ أَمْرِكَ مَا يَعْنِينِي مِنْ أَمْرِ نَفْسِي، فَكَتَبْتُ إِليْكَ كِتَابِي [هَذا]، مُسْتَظْهِراً بِهِ إِنْ أَنا بَقِيتُ لَكَ أَوْ فَنِيتُ.
Now (you should know that) what I have learnt from the turning away of this world from me, the onslaught of time over me and the advancing of the next world towards me is enough to prevent me from remembering anyone except myself and from thinking beyond myself. But when I confined myself to my own worries leaving the worries of others, my intelligence saved me and protected me from my desires. It clarified to me my affairs and led me to seriousness wherein there was no trickery and truth which was not tarnished by falsehood. Here, I found you a part of myself, rather I found you my whole, so much so that if anything befell you, it was as though it befell me and if death came to you it was as though it came to me. Consequently, your affairs meant to me what my own matters meant to me. So, I have written this piece of advice (to you) as an instrument of seeking help through it, whether I remain alive for you or cease to exist.