It is narrated from Sayyiduna Abdullah bin Mas'adah (may Allah be pleased with him), who is one of the Companions of the Prophet (peace and blessings be upon him), that the Prophet (peace and blessings be upon him) led the Zuhr or Asr prayer and gave the salam after two rak'ahs. Sayyiduna Dhu al-Yadayn (may Allah be pleased with him) said: "Has the prayer been shortened, or have you forgotten?" The Prophet (peace and blessings be upon him) said: "What is Dhu al-Yadayn saying?" The Companions (may Allah be pleased with them) said: "He has spoken the truth." So he (peace and blessings be upon him) completed the remaining two rak'ahs with them, then, after giving the salam, he performed the two prostrations of forgetfulness while seated.
Imam al-Tabarani (may Allah have mercy on him) said: "Ibn Mas'adah's name is Abdullah; he is one of the Companions of the Prophet (peace and blessings be upon him)."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ibn Jurayj (may Allah have mercy on him) except Abd al-Razzaq (may Allah have mercy on him), and Ibrahim bin Muhammad bin Barrah (may Allah have mercy on him) is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الألف / 2302
Hadith Gradingمحدثین:رجاله رجال الصحيح خلا شيخ الطبراني إبراهيم بن محمد بن برة
Hadith Takhrij«قال الهيثمي: ورجاله رجال الصحيح خلا شيخ الطبراني إبراهيم بن محمد ابن برة «مجمع الزوائد ومنبع الفوائد، ج 2، ص 153»»