Being a native Arabic speaker, this is the first time I hear about this saying. This article has no credibility whatsoever, and the couple of "writers" cited have no notability and are clearly driven by a political agenda. عمرو بن كلثوم 23:56, 25 October 2011 (UTC)
This phrase ("comes" part) may be translated in diffrent ways, but anyways it would have "بعد السبت" baʿd as-sabt (after Saturday) and "يوم الأحد" yawm al-aḥad. I've googled "بعد السبت" "يوم الأحد" and couldn't find any relevant phrase. --Z 04:39, 12 February 2013 (UTC)
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This barely-attested slogan is sometimes attributed to Muslims, but not, as far as I or the commenters on its talk page can tell, ever actually used by Muslims... which is beside the point that Wiktionary is not a repository of (real or hypothetical) political slogans. What's next, "you didn't build that"? - -sche(discuss) 05:06, 12 February 2013 (UTC)