It was narrated from Thabit that Anas said:
“Salman felt sick and Sa’d came to visit him, and when he saw him he wept. Sa’d said to him: ‘Why are you weeping, my brother? Are you not a Companion of the Messenger of Allah ﷺ? Are you not? Are you not?’ Salman said: ‘I am only weeping for one reason: I am not weeping because of longing for this world or for dislike of the Hereafter. But the Messenger of Allah ﷺ gave me some advice and I think that I have transgressed.’ He said: ‘What was his advice to you?’ He said: ‘He advised me that something like the provision of a rider is sufficient for anyone of you, and I think that I have transgressed that. As for you, O Sa’d, fear Allah when you pass a verdict, and when you distribute (spoils of war), and when you decide to do anything.’”

حَدَّثَنَا الْحَسَنُ بْنُ أَبِي الرَّبِيعِ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، حَدَّثَنَا جَعْفَرُ بْنُ سُلَيْمَانَ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ، قَالَ اشْتَكَى سَلْمَانُ فَعَادَهُ سَعْدٌ فَرَآهُ يَبْكِي فَقَالَ لَهُ سَعْدٌ مَا يُبْكِيكَ يَا أَخِي أَلَيْسَ قَدْ صَحِبْتَ رَسُولَ اللَّهِ ـ ﷺ ـ أَلَيْسَ أَلَيْسَ قَالَ سَلْمَانُ مَا أَبْكِي وَاحِدَةً مِنَ اثْنَتَيْنِ مَا أَبْكِي صَبًّا لِلدُّنْيَا وَلاَ كَرَاهِيَةً لِلآخِرَةِ وَلَكِنْ رَسُولُ اللَّهِ ـ ﷺ ـ عَهِدَ إِلَىَّ عَهْدًا فَمَا أُرَانِي إِلاَّ قَدْ تَعَدَّيْتُ . قَالَ وَمَا عَهِدَ إِلَيْكَ قَالَ عَهِدَ إِلَىَّ أَنَّهُ يَكْفِي أَحَدَكُمْ مِثْلُ زَادِ الرَّاكِبِ وَلاَ أُرَانِي إِلاَّ قَدْ تَعَدَّيْتُ وَأَمَّا أَنْتَ يَا سَعْدُ فَاتَّقِ اللَّهَ عِنْدَ حُكْمِكَ إِذَا حَكَمْتَ وَعِنْدَ قَسْمِكَ إِذَا قَسَمْتَ وَعِنْدَ هَمِّكَ إِذَا هَمَمْتَ . قَالَ ثَابِتٌ فَبَلَغَنِي أَنَّهُ مَا تَرَكَ إِلاَّ بِضْعَةً وَعِشْرِينَ دِرْهَمًا مِنْ نَفَقَةٍ كَانَتْ عِنْدَهُ .