I do not pray the sunnah in any prayer, whether obligatory or otherwise. Is this permissible or not?

Question:
He says about himself: I do not pray the sunnah in any prayer, whether obligatory or otherwise. Is this permissible or not?

Answer:
The sunnah is not obligatory, but the rawatib (the regular voluntary prayers attached to the obligatory ones) with the obligatory prayers are a confirmed sunnah, and likewise the witr is a confirmed sunnah. It should not be left. The witr should not be left, whether at home or while traveling. Likewise, the rawatib of Fajr should not be left, whether at home or while traveling, because the Prophet (peace and blessings be upon him) did not say to leave the witr or the two rak'ahs of Fajr, whether at home or while traveling. The rest of the rawatib are also a confirmed sunnah. So the one who leaves them may be indicating his negligence in matters of his religion. The jurists even mentioned that the one who consistently leaves the rawatib with the obligatory prayers, his testimony is not accepted, because it indicates his negligence in matters of his religion. The matter is serious. So you must maintain these rawatib, except in the case of travel if you are shortening the prayer, in which case you do not pray these rawatib except the rawatib of Fajr only, because the Prophet (peace and blessings be upon him) did not pray these rawatib while traveling except the rawatib of Fajr.