If the prayer is called for and you have begun performing the sunnah, do you cut it off?
Machine translationRead the Arabic original
The questioner:
May Allah reward you, Your Eminence, father. The questioner says: If the prayer is called for and you have begun performing the regular voluntary prayer (rawatib), or the greeting of the mosque, and you are still in the beginning of it, do you cut off the prayer when the call is made?
The Shaykh:
So that we can lighten it.
The presenter:
It is better for you to complete it and not cut it off.
The Shaykh:
Yes.
May Allah reward you, Your Eminence, father. The questioner says: If the prayer is called for and you have begun performing the regular voluntary prayer (rawatib), or the greeting of the mosque, and you are still in the beginning of it, do you cut off the prayer when the call is made?
The Shaykh:
So that we can lighten it.
The presenter:
It is better for you to complete it and not cut it off.
The Shaykh:
Yes.
Source
قناة «العلامة الدكتور صالح الفوزان»، [2222- 4717] إذا أقيمت الصلاة وقد شرعت في أداء السنة، هل أقطعها؟ - الشيخ صالح الفوزان — youtube.com
The Arabic text is a machine transcription of the audio recording.