Shu'aib bin Abi Hamza شعيب بن أبي حمزة · The Book of Forgetfulness (In Prayer)

"The Messenger of Allah (ﷺ) prayed Zuhr or 'Asr and said the taslim following two rak'ahs and left. Dhul-Shimalain bin 'Amr said to him: 'Has the prayer been shortened or did you forget?" The Prophet (ﷺ) said: 'What is Dhul-Yadain saying?' They said: 'He is speaking the truth, O Messenger of Allah (ﷺ).' So he led them in praying the two rak'ahs that he missed."