Ibn Shihab (al-Zuhr) reported on the authority of Abu Bakr bin Sulaiman bin Abi Hathmah that the Messenger of Allah ﷺ did not make two prostrations when are made when one is doubtful until the people met him. Abu Dawud said; this tradition has also been transmitted by al-Zahidi from al-zuhr from Abu Bakr bin Sulaiman bin Abi HAthman from thre prophet ﷺ. This version goes: he did not make two prostrations on account of forgetfulness.