We were with the Prophet ﷺ, and he drew a line (in the sand), then he drew two lines to its right and two to its left. Then he put his hand on the middle line and said : 'This is the path of Allah. Then he recited the Verse: And verily, this (i.e. Allah's Commandments) is My straight path, so follow it and follow not (other) paths, for they will separate you from His path..." (Using translation from Ibn Mājah 11)
كُنَّا جُلُوسًا عِنْدَ النَّبِيِّ ﷺ فَخَطَّ خَطًّا هَكَذَا أَمَامَهُ فَقَالَ هَذَا سَبِيلُ اللهِ وَخَطَّيْنِ عَنْ يَمِينِهِ وَخَطَّيْنِ عَنْ شِمَالِهِ قَالَ هَذِهِ سَبِيلُ الشَّيْطَانِ ثُمَّ وَضَعَ يَدَهُ فِي الْخَطِّ الْأَوْسَطِ ثُمَّ تَلَا هَذِهِ الْآيَةَ {وَأَنَّ هَذَا صِرَاطِي مُسْتَقِيمًا فَاتَّبِعُوهُ وَلَا تَتَّبِعُوا السُّبُلَ فَتَفَرَّقَ بِكُمْ عَنْ سَبِيلِهِ ذَلِكُمْ وَصَّاكُمْ بِهِ لَعَلَّكُمْ تَتَّقُونَ} [الأنعام 153]