A similar tradition has been transmitted by Ibn Ishaq with a different chain of narrators. But in this version he said ‘Araq is a date-basket holding thirty sa’s. Abu Dawud said “This version is sounder than that of Yahya bin Adam.”
أَنَّهُ قَالَ وَالْعَرَقُ مِكْتَلٌ يَسَعُ ثَلاَثِينَ صَاعًا