Narrated Ibn `Abbas:Once I came riding a she-ass when I had just attained the age of puberty. Allah's Messenger (ﷺ) was offering the prayer at Mina with no wall in front of him and I passed in front of some of the row. There I dismounted and let my she-ass loose to graze and entered the row and nobody objected to me about it
Narrated Ibn `Umar:Whenever Allah's Messenger (ﷺ) came out on `Id day, he used to order that a Harba [??] (a short spear) to be planted in front of him (as a Sutra for his prayer) and then he used to pray facing it with the people behind him and used to do the same while on a journey. After the Prophet (ﷺ) , this practice was adopted by the Muslim rulers (who followed his traditions)
Hedîs 495 — صحيح البخاري 8:142
حَدَّثَنَا أَبُو الْوَلِيدِ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ عَوْنِ بْنِ أَبِي جُحَيْفَةَ، قَالَ سَمِعْتُ أَبِي أَنَّ النَّبِيَّ صلى الله عليه وسلم صَلَّى بِهِمْ بِالْبَطْحَاءِ ـ وَبَيْنَ يَدَيْهِ عَنَزَةٌ ـ الظُّهْرَ رَكْعَتَيْنِ، وَالْعَصْرَ رَكْعَتَيْنِ، تَمُرُّ بَيْنَ يَدَيْهِ الْمَرْأَةُ وَالْحِمَارُ.
Narrated `Aun bin Abi Juhaifa:I heard my father saying, "The Prophet (ﷺ) led us, and prayed a two-rak`at Zuhr prayer and then a two-rak` at `Asr prayer at Al-Batha' [??] with a short spear (planted) in front of him (as a Sutra) while women and donkeys were passing in front of him (beyond that stick)
Hedîs 496 — صحيح البخاري 8:143
حَدَّثَنَا عَمْرُو بْنُ زُرَارَةَ، قَالَ أَخْبَرَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، عَنْ أَبِيهِ، عَنْ سَهْلٍ، قَالَ كَانَ بَيْنَ مُصَلَّى رَسُولِ اللَّهِ صلى الله عليه وسلم وَبَيْنَ الْجِدَارِ مَمَرُّ الشَّاةِ.
Narrated Sahl (bin Sa`d):The distance between the Musalla of Allah's Messenger (ﷺ) and the wall was just sufficient for a sheep to pass through