before it nor after it. He would only perform those Sunnah units when he completed Zuhr as four units (rakʿahs). Accordingly, since his practice with the shortened Zuhr differed from his practice with the full Zuhr, the very proof they cite turns against them rather than supporting them. Indeed, the factor that justifies omitting part of the obligatory prayer is even stronger for omitting the regular Sunnah, as one of the Companions said: “Had I been praying voluntarily, I would have completed the obligatory prayer.” For if it were recommended for the traveler to pray four units, it would be more fitting for him to make Zuhr itself four units than to pray two as the obligation and two as Sunnah. And this