(201) باب مَنْ قَالَ بَعْدَ التَّسْلِيمِ
Narrated Abdullah ibn Ja'far:
The Prophet (ﷺ) said: Anyone who is in doubt in his prayer should make two prostrations after giving the salutation. (ID)
Reference (ID): Sunan Abi Dawud 1033 (ID)
In-book reference (ID): Book 2, Hadith 644 (ID)
English translation (ID): Book 3, Hadith 1028 (ID)