"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.'"  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ اعْتَدِلُوا فِي السُّجُودِ وَلاَ يَبْسُطْ أَحَدُكُمْ ذِرَاعَيْهِ انْبِسَاطَ الْكَلْبِ اللَّفْظُ لإِسْحَاقَ