'Abdullah bin Malik ibn Buhaina al-Asadi reported: The Messenger of Allah ( صلی اللہ علیہ وسلم ) stood up (at the end of two rak'ahs) when he had to sit and proceeded on with the prayer. But when he was at the end of the prayer, he performed a prostration before the salutation and then pronounced the salutation.

Abu Sa'id al-Khudri reported: The Messenger of Allah ( صلی اللہ علیہ وسلم ) said: When any one of you is in doubt about his prayer and he does not know how much he has prayed, three or four (rak'ahs). he should cast aside his doubt and base his prayer on what he is sure of. then perform two prostrations before giving salutations. If he has prayed five rak'ahs, they will make his prayer an even number for him, and if he has prayed exactly four, they will be humiliation for the devil.

This hadith has been narrated by Zaid bin Aslam with the same chain of transmitters and he said: He should perform two prostrations before the salutation, as it was mentioned by Sulaiman bin Bilal (RA) .

'Alqama narrated It on the authority of 'Abdullah (b. Mas'ud) who said: The Messenger of Allah ( صلی اللہ علیہ وسلم ) said the prayer; (the narrator added): He made some act of omission or commission when he pronounced salutation; it was said to him: Messenger of Allah, is there something new about the prayer? He (the Holy Prophet) said: What is it? They said: You said prayer in such and such away. He (the narrator) said: He (the Holy Prophet) turned his feet and faced the Qibla and performed two prostrations and then pronounced salutations, and then turned his face towards us and said: If there is anything new about prayer (new command from the Lord) I informed you of that. But I am a human being and I forget as you forget, so when I forget, remind me, and when any one of you is in doubt about his prayer. he should aim at what is correct and complete his prayer in that respect and then make two prostrations.

This hadith has been narrated by Mansur with the same chain of transmitters, with a slight modification of words.

This hadith is reported by Mansur with the same chain of transmitters, but with these words: "He should aim at correct (prayer) and it is advisable."

This hadith has been narrated by Mansur with the same chain of transmitters with the words: "He should aim at what is correct and complete."

This hadith has been reported by Mansur with the same chain of transmitters and he said: "He should aim at what is according to him correct."

This hadith has been narrated by Mansur and he said: "He should aim at correctness."

This hadith has been narrated by Mansur and he said: " He should aim at correctness."