The Book of Pilgrimage
وَحَدَّثَنِيهِ عَبْدُ اللَّهِ بْنُ هَاشِمٍ، حَدَّثَنَا وَكِيعٌ، عَنْ سُفْيَانَ، عَنِ ابْنِ دِينَارٍ، بِهَذَا الإِسْنَادِ . وَلَمْ يَذْكُرْ كُلَّ سَبْتٍ .This hadlth has been narrated on the authority of Ibn Dinar, but he made no mention of:" Every Saturday
From Sahih Muslim, whose reports the scholars accept as authentic.