Mishkat al-Masabih 4 Prayer كتاب الصلاة 212

وَعَنِ الْفَضْلِ بْنِ عَبَّاسٍ قَالَ: أَتَانَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَنَحْنُ فِي بَادِيَةٍ لَنَا وَمَعَهُ عَبَّاسٌ فَصَلَّى فِي صَحْرَاءَ لَيْسَ بَيْنَ يَدَيْهِ سُتْرَةٌ وَحِمَارَةٌ لَنَا وَكَلْبَةٌ تعبثان بَين يَدَيْهِ فَمَا بالى ذَلِك. رَوَاهُ أَبُو دَاوُد وللنسائي نَحوه

Al-Fadl b. ‘Abbas said, “God’s Messenger came to us accompanied by ‘Abbas when we were in open country belonging to us. He prayed in a desert with no sutra in front of him, and a she-ass and a bitch of ours were playing in front of him, but he paid no attention to that.” Abu Dawud transmitted it and Nasa’i has something similar.