Is it permissible to combine the prayer of istikharah with the regular voluntary prayer (rawatib) with a single intention?

The questioner : The questioner says: May the Shaykh please tell us, is it permissible to combine the prayer of istikharah with the regular voluntary prayer (rawatib) with a single intention?

The Shaykh : It is better to make the prayer of istikharah an independent prayer, because the Prophet (peace and blessings be upon him) commanded it. He said: . So the Prophet (peace and blessings be upon him) made the prayer of istikharah an independent prayer. Yes.