"The Messenger of Allah ﷺ said: This is 'Jibril, peace be upon you, he came to teach you your religion. He prayed Subh when the dawn appeared, and he prayed Zuhr when the sun had (passed its zenith), and he prayed 'Asr when he saw that the shadow of a thing was equal to its height, then he prayed Maghrib when the sub had set and it is permissible for the fasting person to eat. Then he prayed 'Isha' when the twilight had disappeared. Then he came to him the following day and prayed Subh when it had got a little lighter, then he prayed Zuhr when the shadow of a thing was equal to its height, then he prayed 'Asr when the shadow of a thing was equal to twice its height, then he prayed Maghrib at the same time as before, then he prayed 'Isha' when a short period of the night had passed. Then he said: 'The prayer is between the times when you prayed yesterday and the times when you prayed today.'"  

قَالَ رَسُولُ اللَّهِ ﷺ هَذَا جِبْرِيلُ عَلَيْهِ السَّلاَمُ جَاءَكُمْ يُعَلِّمُكُمْ دِينَكُمْ فَصَلَّى الصُّبْحَ حِينَ طَلَعَ الْفَجْرُ وَصَلَّى الظُّهْرَ حِينَ زَاغَتِ الشَّمْسُ ثُمَّ صَلَّى الْعَصْرَ حِينَ رَأَى الظِّلَّ مِثْلَهُ ثُمَّ صَلَّى الْمَغْرِبَ حِينَ غَرَبَتِ الشَّمْسُ وَحَلَّ فِطْرُ الصَّائِمِ ثُمَّ صَلَّى الْعِشَاءَ حِينَ ذَهَبَ شَفَقُ اللَّيْلِ ثُمَّ جَاءَهُ الْغَدَ فَصَلَّى بِهِ الصُّبْحَ حِينَ أَسْفَرَ قَلِيلاً ثُمَّ صَلَّى بِهِ الظُّهْرَ حِينَ كَانَ الظِّلُّ مِثْلَهُ ثُمَّ صَلَّى الْعَصْرَ حِينَ كَانَ الظِّلُّ مِثْلَيْهِ ثُمَّ صَلَّى الْمَغْرِبَ بِوَقْتٍ وَاحِدٍ حِينَ غَرَبَتِ الشَّمْسُ وَحَلَّ فِطْرُ الصَّائِمِ ثُمَّ صَلَّى الْعِشَاءَ حِينَ ذَهَبَ سَاعَةٌ مِنَ اللَّيْلِ ثُمَّ قَالَ الصَّلاَةُ مَا بَيْنَ صَلاَتِكَ أَمْسِ وَصَلاَتِكَ الْيَوْمَ  

"The Prophet ﷺ prayed Zuhr when the length of (a person's shadow) was between three and five feet in summer, and between five and seven feet in winter."  

كَانَ قَدْرُ صَلاَةِ رَسُولِ اللَّهِ ﷺ الظُّهْرَ فِي الصَّيْفِ ثَلاَثَةَ أَقْدَامٍ إِلَى خَمْسَةِ أَقْدَامٍ وَفِي الشِّتَاءِ خَمْسَةَ أَقْدَامٍ إِلَى سَبْعَةِ أَقْدَامٍ