عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَنَّهُ خَطَّ خَطًّا مُرَبَّعًا وَخَطَّ خَطًّا وَسَطَ الْخَطِّ الْمُرَبَّعِ وَخُطُوطًا إِلَى جَنْبِ الْخَطِّ الَّذِي وَسَطَ الْخَطِّ الْمُرَبَّعِ وَخَطٌّ خَارِجٌ مِنَ الْخَطِّ الْمُرَبَّعِ قَالَ هَلْ تَدْرُونَ مَا هَذَا قَالُوا اللَّهُ وَرَسُولُهُ أَعْلَمُ قَالَ هَذَا الْإِنْسَانُ الْخَطُّ الْأَوْسَطُ وَهَذِهِ الْخُطُوطُ الَّتِي جَنْبَهُ الْأَعْرَاضُ تَنْهَشُهُ مِنْ كُلِّ مَكَانٍ إِنْ أَخْطَأَ هَذَا أَصَابَهُ هَذَا وَالْخَطُّ الْمُرَبَّعُ الْأَجَلُ الْمُحِيطُ بِهِ وَالْخَطُّ الْخَارِجُ الْأَمَلُ
It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) drew lines and made a square shape. In the middle of this shape, he drew a line, and then inside the shape itself, he drew several more lines alongside it, and one line he drew outside the square. Then he said: "Do you know what this is?" They said: "Allah and His Messenger know best." The Prophet (peace and blessings be upon him) said: "The line in the middle is man, the lines alongside it are diseases that try to attack him at every place; if one misses its mark, another strikes. The lines forming the square are man's death, which surrounds him, and the line outside the shape is man's hope."