عَنْ عِمْرَانَ بْنِ حُصَيْنٍ
أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ صَلَّى بهم فَسَهَا فَسجدَ سَجْدَتَيْنِ ثُمَّ تَشَهَّدَ ثُمَّ سَلَّمَ
Imran ibn Husayn said that the Prophet (sallallahu alayhi wa sallam) led them in prayer and forgot something, so he made two prostrations, then uttered the shahada, then gave the salutation.