عَن عَمْرو بن الْعَاصِ قَالَ: أَقْرَأَنِي رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ خَمْسُ عَشْرَةَ سَجْدَةً فِي الْقُرْآنِ مِنْهَا ثَلَاثٌ فِي الْمُفَصَّلِ وَفِي سُورَةِ الْحَجِّ سَجْدَتَيْنِ. رَوَاهُ أَبُو دَاوُد وَابْن مَاجَه

He said

God’s Messenger used to recite the Qur'an to us, and when he came to a place where a prostration should be made he said “God is most great” and prostrated himself, and we prostrated ourselves along with him. Abu Dawud transmitted it.