"I heard Anas (narrate) that the Messenger of Allah ﷺ said: 'Be moderate in prostration and do not rest your forearms along the ground like a dog.'" (Using translation from Nasāʾī 1110)
عَنْ رَسُولِ اللهِ ﷺ قَالَ «اعْتَدِلُوا فِي السُّجُودِ وَلَا يَبْسُطُ أَحَدُكُمْ ذِرَاعَيْهِ بَسْطَ الْكَلْبِ» اللَّفْظُ لِإِسْحَاقَ