Mishkat al-Masabih
Mishkat al-Masabih 586
The Times of Prayer - Section 3
Arabic hadith text
وَعَنِ ابْنِ مَسْعُودٍ قَالَ: كَانَ قَدْرُ صَلَاةِ رَسُول الله صلى الله عَلَيْهِ وَسلم الظّهْر فِي الصَّيْفِ ثَلَاثَةَ أَقْدَامٍ إِلَى خَمْسَةِ أَقْدَامٍ وَفِي الشِّتَاءِ خَمْسَةَ أَقْدَامٍ إِلَى سَبْعَةِ أَقْدَامٍ. رَوَاهُ أَبُو دَاوُد وَالنَّسَائِيّ
Translation
Ibn Mas'ud said that the extent of the shadow when God’s Messenger prayed the noon prayer was three to five feet in summer and five to seven feet in winter. Abu Dawud and Nasa’i transmitted it.