Is it permissible to say the supplication: “O Allah, forgive me what I have done before and what I have done after” before or after the closing salam?
Machine translationRead the Arabic original
Question:
The phrase “O Allah, forgive me what I have done before and what I have done after” has two wordings, O Shaykh. Is it prohibited in the tashahhud after the prayer?
Answer:
Because it is preserved as being before the prayer; because the supplication that is prescribed and recommended is before one says the salam. If he says it to himself after the salam, there is no harm, and after the dhikr, there is no harm. But it is better for it to be before the salam, as long as he is in the act of worship, before he turns away from it.
The phrase “O Allah, forgive me what I have done before and what I have done after” has two wordings, O Shaykh. Is it prohibited in the tashahhud after the prayer?
Answer:
Because it is preserved as being before the prayer; because the supplication that is prescribed and recommended is before one says the salam. If he says it to himself after the salam, there is no harm, and after the dhikr, there is no harm. But it is better for it to be before the salam, as long as he is in the act of worship, before he turns away from it.
Source
قناة «فضيلة الشيخ ابن باز Alsheikh Binbaz»، 477- هل يقال دعاء : اللهم اغفر لي ما قدمت وما أخرت" قبل السلام أو بعده؟ - ابن باز — youtube.com
The Arabic text is a machine transcription of the audio recording.