One who completes the two rak'ahs while ignorant of the Sunnah
Machine translationRead the Arabic original
The questioner:
This man did not know the Sunnah, so he concluded the prayer after two rak'ahs. He was then instructed immediately after the prayer to stand and perform two rak'ahs. Is that sufficient for him, or can he stay up?
The Shaykh:
Yes, like the Prophet (peace and blessings be upon him), the one who forgets is ignorant. He said: he completes it.
The questioner:
And he does not need to do anything else.
The Shaykh:
If he spoke, he touched it with his hands and resembled it.
The questioner:
Does he prostrate for forgetfulness, Shaykh?
The Shaykh:
No, he is not one who forgot; he is ignorant. We completed it.
This man did not know the Sunnah, so he concluded the prayer after two rak'ahs. He was then instructed immediately after the prayer to stand and perform two rak'ahs. Is that sufficient for him, or can he stay up?
The Shaykh:
Yes, like the Prophet (peace and blessings be upon him), the one who forgets is ignorant. He said: he completes it.
The questioner:
And he does not need to do anything else.
The Shaykh:
If he spoke, he touched it with his hands and resembled it.
The questioner:
Does he prostrate for forgetfulness, Shaykh?
The Shaykh:
No, he is not one who forgot; he is ignorant. We completed it.
Source
لقاءات لابن باز - لقاء مع إخوة في الله - ابن باز - ٤ — archive.org (53:47)
The Arabic text is a machine transcription of the audio recording.