I stand corrected. Saturday does refer to السبت. My Apology for this mistake. However nowhere in the Quran or Hadith Itself is it ever mentioned that Bani Israeel changed their Day of Congregation from Friday to Saturday. Also in the Hadith its mentioned that all the three days, Fri, Sat & Sun are days of Prayers for each Ummat respectively. If there exists such a hadith plz do enlighten me. I Respectfully disagree with eminent scholar Ghamidi Sab. However i dont know what are his references for providing such a conclusion about Bani Israeel.
Quran 4:154:-
and We raised the Mount high above them and took from them a covenant (to obey the commandment), and ordered them: ‘Enter the gate in the state of prostration.’ And We said to them: ‘Do not violate the law of the Sabbath’, and took from them a firm covenant.
Hadith:
It was Friday from which Allah diverted those who were before us. For the Jews (the day set aside for prayer) was Sabt (Saturday), and for the Christians it was Sunday. And Allah turned towards us and guided us to Friday (as the day of prayer) for us. In fact, He (Allah) made Friday, Saturday and Sunday (as days of prayer). In this order would they (Jews and Christians) come after us on the Day of Resurrection. We are the last of (the Ummahs) among the people in this world and the first among the created to be judged on the Day of Resurrection. In one narration it is: ‘, to be judged among them”.
Reference : Sahih Muslim 856a In-book reference : Book 7, Hadith 32
Following is the Urdu Commentary of Ghamidi sab of Quran 4:154:-
یہ اصلاً جمعہ کا دن تھا جسے بنی اسرائیل نے اُس کے اگلے دن سے بدل ڈالا۔ اُن کے ہاں یہ دن پشت در پشت تک دائمی عہد کے نشان کے طور پر خدا کی عبادت کے لیے خاص تھا اور اِس میں اُن کے لیے کام کاج، سیروشکار، حتیٰ کہ گھروں میں آگ جلانا اور لونڈی غلاموں سے کوئی خدمت لینا بھی ممنوع قرار دیا گیا تھا۔ اُن کی ایک بستی کے لوگوں نے اِس دن کی پابندیوں سے اپنے آپ کو آزاد کرنے کے لیے جو شرعی حیلے ایجاد کیے اور اِس طرح اللہ کی شریعت کا مذاق اڑایا، یہ اُسی کا ذکر ہے۔
Peace Out!