عَنْ أَنَسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَقِيمُوا الرُّكُوعَ وَالسُّجُودَ فَوَاللَّهِ إِنِّي لأَرَاكُمْ من بعدِي»

Anas said

When the Prophet said, “God listens to him who praises Him,” he stood so long that we thought he had omitted something; then he would prostrate himself and sit between the sajdas so long that we thought he had omitted something. Muslim transmitted it.