The Prophet ﷺ talked about a man leveling the earth on prostrating, and said, "If you have to do so, then do it once." (Using translation from Bukhārī 1207)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ فِي الرَّجُلِ يُسَوِّي التُّرَابَ حَيْثُ يَسْجُدُ إِنْ كُنْتَ فَاعِلًا فَوَاحِدَةً