What one does on forgetting and standing after two rakahs

Al-Sha'bi said: I prayed behind Sayyiduna al-Mughirah bin Shu'bah (may Allah be pleased with him). He began to stand up in the second rak'ah, and the people said "Subhan Allah", but he did not sit. When he had said the salam, he performed the two prostrations of forgetfulness while sitting. Then he said: "This is how I saw the Messenger of Allah (peace and blessings be upon him) do it."

Qays said: Sayyiduna Sa'd bin Malik (may Allah be pleased with him) led his companions in prayer. He stood up in the third rak'ah, and the people said "Subhan Allah", but he did not sit; he too said "Subhan Allah" and gestured to the people to stand up. Then he led the prayer and performed the two prostrations of forgetfulness.

Sayyiduna Ibn Buhaynah (may Allah be pleased with him) said: After praying two rak'ahs of Zuhr, the Prophet (peace and blessings be upon him) stood up instead of sitting. Then, when he was about to finish the prayer, before saying the salam, he performed the two prostrations of forgetfulness and then said the salam.

Nafi' said: Sayyiduna Ibn al-Zubayr (may Allah be pleased with him) began to stand up after praying two rak'ahs, and the people said "Subhan Allah", until he realised that he had made a mistake; even so he continued with his prayer.

Al-Sha'bi said: Sayyiduna al-Nu'man bin Bashir (may Allah be pleased with him) led the prayer. After two rak'ahs he began to rise, and the people said "Subhan Allah", but he continued with the prayer. When he had finished the prayer, he performed the two prostrations of forgetfulness while sitting.

Ibn Awn said: I said to al-Sha'bi: "I prayed two rak'ahs, and when I should have sat down, I stood up." He said: "If it had been me, I would have continued with the prayer."

Abd al-Rahman bin Shumasah said: Sayyiduna Uqbah bin Amir (may Allah be pleased with him) stood up in the prayer at a place where he should have sat. The people said "Subhan Allah", and he understood what they meant. When he had finished the prayer, he performed two prostrations while sitting, and said: "I heard what you said, and this is the Sunnah."

Ata said, concerning a man who stands up after praying two rak'ahs of an obligatory prayer: If he has stood up fully, he should continue his prayer, and when he has completed his prayer, he should perform two prostrations after saying the salam.

Al-Hasan said, concerning a man who is praying two rak'ahs of an obligatory prayer, forgets to recite the tashahhud and begins to stand up: If he has stood up fully, he should continue the prayer and perform the two prostrations of forgetfulness.

Thabit bin Ubayd said: I prayed behind Sayyiduna al-Mughirah bin Shu'bah (may Allah be pleased with him). After praying two rak'ahs he stood up instead of sitting, and when he finished, he performed the two prostrations of forgetfulness.

Muhammad (bin Sirin) said: Sayyiduna Imran bin Husayn (may Allah be pleased with him) led us in prayer in the mosque. He stood up after praying two rak'ahs, or sat down after praying three rak'ahs; Hisham's strongest opinion is that he sat after the two rak'ahs. When he had completed the prayer, he performed the two prostrations of forgetfulness.

Al-Sha'bi said: Al-Dahhak bin Qays led the people in the Zuhr prayer and did not sit after the first two rak'ahs. When he said the salam, he performed the two prostrations of forgetfulness while sitting.